BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:A closer look at the W' and/or dijet analyses DTSTART;VALUE=DATE-TIME:20101216T100000Z DTEND;VALUE=DATE-TIME:20101216T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-117119@cern.ch DESCRIPTION:We are planning for lively discussions on this topic and some jet and W' experts will also be present. This will be a great opportunity to discuss with the experts and with our experimental colleagues.\nYou are most welcome to join!\n\nhttp://indico.cern.ch/conferenceDisplay.py?confI d=117119 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=117119 END:VEVENT BEGIN:VEVENT SUMMARY:Prospects for Higgs searches at the LHC -- Experimental Vector-Bos on Higgs analysis DTSTART;VALUE=DATE-TIME:20110113T100000Z DTEND;VALUE=DATE-TIME:20110113T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-117366@cern.ch DESCRIPTION:In the environment of vector-boson fusion searches for the Sta ndard-Model Higgs\, selections on the expected VBF signature play an impor tant role for controlling the background. The efficiency of such selection s is controlled for the background by relying on side bands or Monte-Carlo information. We will discuss the general strategy used in VBF type analys es\, and how this effects the projected signal selection efficiency - in terms of physics objects in the detector\, event topology\, reference Mont e-Carlo choices\, etc.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confI d=117366 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=117366 END:VEVENT BEGIN:VEVENT SUMMARY:Prospects for Higgs searches at the LHC -- Theory discussion DTSTART;VALUE=DATE-TIME:20110120T100000Z DTEND;VALUE=DATE-TIME:20110120T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-117365@cern.ch DESCRIPTION:Theoretical aspects of Higgs searches at the 7 TeV LHC in the context of the Standard Model and its supersymmetric extensions will be d iscussed. Some focus will be put on SUSY neutral Higgs production with dec ays into tau lepton pairs\, for which ATLAS and CMS analyses with 35 pb-1 data will be soon made available.\n\nhttp://indico.cern.ch/conferenceDispl ay.py?confId=117365 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=117365 END:VEVENT BEGIN:VEVENT SUMMARY:Prospects for Higgs searches at the LHC -- Higgs phenomenology wit h VBF@NLO DTSTART;VALUE=DATE-TIME:20110127T100000Z DTEND;VALUE=DATE-TIME:20110127T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-121949@cern.ch DESCRIPTION:VBFNLO is a fully flexible parton level Monte Carlo program fo r the simulation of vector boson fusion\, double and triple vector boson p roduction in hadronic collisions at next-to-leading order in the strong co upling constant. VBFNLO includes Higgs and vector boson decays with full s pin correlations and all off-shell effects. In addition\, VBFNLO implement s CP-even and CP-odd Higgs boson via gluon fusion\, associated with two je ts\, at the leading-order one-loop level with the full top- and bottom-qua rk mass dependence in a generic two-Higgs-doublet model. \n\nA variety of effects arising from beyond the Standard Model physics are implemented for selected processes. This includes anomalous couplings of Higgs and vector bosons and a Warped Higgsless extra dimension model. The program offers t he possibility to generate Les Houches Accord event files for all processe s available at leading order.\n\nI will highlight some of the recent devel opments in VBFNLO. These include the computation electroweak corrections i n Higgs boson production via VBF for the SM and MSSM (arXiv:1012.4789) and the computation of the NLO QCD corrections for Higgs boson production in association of a photon in VBF (arXiv:1006.4237).\n\nhttp://indico.cern.ch /conferenceDisplay.py?confId=121949 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=121949 END:VEVENT BEGIN:VEVENT SUMMARY:Search for SUSY in Events with Jets and MET with CMS DTSTART;VALUE=DATE-TIME:20110203T100000Z DTEND;VALUE=DATE-TIME:20110203T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-121948@cern.ch DESCRIPTION:A search for supersymmetry with R-parity conservation at 7TeV is presented\, performed on 35 pb-1 collected by the CMS experiment at the LHC. The search is performed in events with jets and significant missing transverse energy\, characteristic of the decays of heavy\, pair-produced squarks and gluinos. The primary background\, from standard model multijet production\, is reduced by several orders of magnitude to a negligible le vel by the application of a set of robust kinematic requirements. With thi s selection\, the data are consistent with the standard model backgrounds\ , namely t t-bar\, W + jet and Z + jet production\, which are estimated fr om data control samples. Limits are set on the parameters of the constrain ed minimal supersymmetric extension of the standard model. These limits ex tend those set previously by experiments at the Tevatron and LEP colliders .\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=121948 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=121948 END:VEVENT BEGIN:VEVENT SUMMARY:No Cross Talk (LPCC Workshop on Global BSM fits and LHC data) DTSTART;VALUE=DATE-TIME:20110210T100000Z DTEND;VALUE=DATE-TIME:20110210T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-121612@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=121612 LOCATION:CERN URL:http://indico.cern.ch/conferenceDisplay.py?confId=121612 END:VEVENT BEGIN:VEVENT SUMMARY:Geometrical scaling at the LHC DTSTART;VALUE=DATE-TIME:20110217T100000Z DTEND;VALUE=DATE-TIME:20110217T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-119138@cern.ch DESCRIPTION:By geometrical scaling\, first introduced for small-x deep ine lastic scattering\, we understand situation where some observables (cross- sections\, multiplicity distributions etc.) that in principle depend on tw o independent kinematical variables\, in fact depend only on some specific combination of them. We show that pT spectra in pp colisions at the LHC\, as well as pT spectra in heavy ion collisions at RHIC exhibit geometrical scaling expressed in terms of the saturation scale. We propose\nto discus s what kind of data will be useful for further studies of GS in hadronic c ollisions and what GS can tell us about mechanism of multiparticle product ion at high energies.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId =119138 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=119138 END:VEVENT BEGIN:VEVENT SUMMARY:One-lepton inclusive SUSY searches in ATLAS DTSTART;VALUE=DATE-TIME:20110224T100000Z DTEND;VALUE=DATE-TIME:20110224T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-121952@cern.ch DESCRIPTION:In this presentation the first search for supersymmetry in fin al states containing one isolated electron or muon\, jets\, and missing tr ansverse momentum from sqrt{s} = 7 TeV proton-proton collisions at the LHC is presented. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of 35 pb-1. No excess abov e the standard model background expectation is observed. Limits are set on the parameters of the minimal supergravity framework\, extending previous limits. For A_0 = 0 GeV\, tan beta = 3\, mu > 0 and for equal squark and gluino masses\, gluino masses below 700 GeV are excluded at 95% confidence level.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=121952 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=121952 END:VEVENT BEGIN:VEVENT SUMMARY:Two recent topics on jet substructure DTSTART;VALUE=DATE-TIME:20110303T100000Z DTEND;VALUE=DATE-TIME:20110303T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-121954@cern.ch DESCRIPTION:We will have a discussion on two recent papers dealing with je t physics phenomenology: Classification of energy flows in narrow jets and the N-subjettiness jet shape observable.\nIn the first part M. Papucci wi ll give us an introduction on how to classify energy flow observables in n arrow jets\, in the second part J. Kim will talk about his work on subjet structures and how to make use of a jet shape observable called N-subjetti ness.Due to its unprecedented high collision energy and luminosity\, seve re contributions from the underlying event (UE) and pileup are expected a t the LHC. UE and pileup generate many undesired soft hadrons\, contamina te jets\, and make it even harder to correctly combine jets to reconstru ct the heavy resonances. Using the signals involving highly boosted parti cles is one of the promising ways to overcome such problems.\nJ. Kim will introduce to us a jet shape observable\, N-subjettiness\, that helps disc riminate a fat jet from ordinary QCD jets where the fat jets arise from hi ghly boosted colour singlet particles decaying to N partons. As an illust ration\, a toy scheme for the light Standard Model Higgs search via hadr onic decay channels\, pp -> H W/Z\, is suggested. Issues regarding the sub jet definition as required by the N-subjettiness are also discussed for bo th the SISCone and anti-kT jet algorithm.\n\nhttp://indico.cern.ch/confere nceDisplay.py?confId=121954 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=121954 END:VEVENT BEGIN:VEVENT SUMMARY:The non-perturbative parameters in Higgs cross sections at the LHC DTSTART;VALUE=DATE-TIME:20110310T100000Z DTEND;VALUE=DATE-TIME:20110310T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-127010@cern.ch DESCRIPTION:Precision predictions for the rates of Higgs production are a key ingredient in the experimental searches and include the higher-order r adiative corrections\, usually to next-to-next-to-leading order in QCD. Th ese predictions display an apparent convergence of the perturbative expans ion and a substantially reduced dependence on the choice of the factorizat ion and renormalization scales. \nPhenomenology at hadron colliders\, howe ver\, also has to address the uncertainty due to the non-perturbative para meters\, such as the parton distributions\, the value of the strong coupli ng constant and the mass of the heavy quarks.\nIt has become obvious\, tha t currently the largest differences between the various predictions of the Higgs boson and other hard scattering cross sections at Tevatron and the LHC are of precisely this origin.\nIn this talk we investigate this point in detail\, discuss sources of discrepancies as well as strategies for imp rovements.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=127010 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=127010 END:VEVENT BEGIN:VEVENT SUMMARY:Jet energy calibration at CMS DTSTART;VALUE=DATE-TIME:20110317T100000Z DTEND;VALUE=DATE-TIME:20110317T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-131333@cern.ch DESCRIPTION:The LHC experiments CMS and ATLAS have made quick progress on understanding their jet energy calibration (JEC) since the start of the LH C physics running. They may soon reach levels of precision (~1%) where det ailed simulation of jet fragmentation and subjet structure for different i nitial parton flavors (quark\, gluon\, charm\, b) will be required to unde rstand the differences between the calibration samples (dijet\, photon/Z+j et\, Wqq in top)\, and to properly apply experimentally determined JEC for different physics analyses (e.g. inclusive jets\, top mass).\nAt the oppo site end of the scale\, data-based calibration methods such as the missing -ET projection fraction (MPF) and pT balance methods used at CMS require d etailed understanding of full event kinematics in order to extract precise information on JEC. Of particular interest are the effects of initial and final state radiation\, underlying event\, and out-of-cone showering.\nWe will briefly present the data-based methods and their systematics\, and d iscuss initial experiences on the flavor response systematics at CMS. We w ould then like to initiate discussion on the relative merits of the variou s MC models (Pythia 6\, Herwig++ in particular) for determining the biases in these methods\, and for modeling the fragmentation in order to predict response differences for different jet flavors. We would also like to col lect ideas and feed-back on possible jet variables to try and determine JE C "bottom-up" for arbitrary flavor mixtures in the future.\n\nhttp://indic o.cern.ch/conferenceDisplay.py?confId=131333 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=131333 END:VEVENT BEGIN:VEVENT SUMMARY:Measuring the polarization of W bosons with large transverse momen tum DTSTART;VALUE=DATE-TIME:20110324T100000Z DTEND;VALUE=DATE-TIME:20110324T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-131156@cern.ch DESCRIPTION:The first measurement of the polarization of W bosons with lar ge transverse momentum at a proton--proton collider is presented. The meas urement is based on 36 inverse pb of data recorded at √s = 7 TeV by the CMS detector at the LHC. Using both decays to electrons and muons\, W boso ns with a transverse momentum larger than 50 GeV are used to determine the left-handed\, right-handed and longitudinal polarization fractions (f_L\, f_R\, f_0).\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=131156 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=131156 END:VEVENT BEGIN:VEVENT SUMMARY:Latest H -> WW results from ATLAS and CMS DTSTART;VALUE=DATE-TIME:20110331T090000Z DTEND;VALUE=DATE-TIME:20110331T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-131155@cern.ch DESCRIPTION:We discuss ATLAS and CMS measurement of WW production and sear ches for H -> WW with 35-36/pb of data\, as well as the first measurements of the Standard Model charged di-boson cross-section at 7 TeV.\n\nSpeaker s:\nBill Quayle (ATLAS)\nChiara Rovelli (CMS)\n\nhttp://indico.cern.ch/con ferenceDisplay.py?confId=131155 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=131155 END:VEVENT BEGIN:VEVENT SUMMARY:Recent developments in NLO computations matched to showers DTSTART;VALUE=DATE-TIME:20110407T090000Z DTEND;VALUE=DATE-TIME:20110407T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-128342@cern.ch DESCRIPTION:I shall review the basic ideas behind NLO/MC matching\, illust rate the methodology used to automate NLO calculations and the MC@NLO matc hing procedure\, and discuss the present and future capabilities of the au tomatic codes.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=128342 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=128342 END:VEVENT BEGIN:VEVENT SUMMARY:First results on Bs -> mumu from LHCb DTSTART;VALUE=DATE-TIME:20110414T090000Z DTEND;VALUE=DATE-TIME:20110414T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-124928@cern.ch DESCRIPTION:\nBR(Bs ->mumu) is a sensitive probe for physics beyond the St andard Model. A search for the decays Bs-->mumu and Bd-->mumu is performed with about 37 pb^{-1} of pp collisions at sqrt{s} = 7 TeV collected by th e LHCb experiment at the Large Hadron Collider at CERN. The observed numbe rs of events are consistent with the background expectations. The resultin g upper limits on the branching ratios are BR(Bs-->mumu) mumu) mumu) would go down to approximately 2.1(2.6)x10^{-8} @ 90 (95)% CL. \n\n\n\nhttp://i ndico.cern.ch/conferenceDisplay.py?confId=124928 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=124928 END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of the charge asymmetry in top quark pair production w ith the CMS detector DTSTART;VALUE=DATE-TIME:20110428T090000Z DTEND;VALUE=DATE-TIME:20110428T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-135721@cern.ch DESCRIPTION:We present a measurement of the charge asymmetry in top quark pair production using an integrated luminosity of 36 pb−1 collected duri ng 2010 with the CMS detector. Top pair candidates with a signature of a c harged lepton and at least four jets are selected.\n\nhttp://indico.cern.c h/conferenceDisplay.py?confId=135721 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=135721 END:VEVENT BEGIN:VEVENT SUMMARY:Z and H -> tau tau at CMS and ATLAS DTSTART;VALUE=DATE-TIME:20110505T090000Z DTEND;VALUE=DATE-TIME:20110505T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-135177@cern.ch DESCRIPTION:Searches for Higgs bosons in final states with tau leptons are performed by CMS. In the Standard Model the branching fraction for Higgs bosons below 130 GeV/c2 is approximately 10%. Models beyond the Standard M odel\, like the MSSM\, predict enhancement in the production cross section and branching ratios to taus\, resulting in increased sensitivity over a broad Higgs boson mass range. I will review the status of the tau reconstr uction and identification in CMS as well the data driven methods to measur e the tau ID efficiency\, ending with the review of the limits on the MSSM Higgs boson mass.\nIn a second part\, the ATLAS results on a similar anal ysis will also be presented. Two studies of Z->tau tau decays have been pe rformed with the ATLAS experiment at the LHC. The first measurement of the process Z → ττ → eμ + 4ν using the ATLAS detector is presented. A study of Z->tau tau decays has also been performed\, where the channel wi th one tau lepton decaying into electron or muon and the second one into h adrons has been considered.\n\nhttp://indico.cern.ch/conferenceDisplay.py? confId=135177 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=135177 END:VEVENT BEGIN:VEVENT SUMMARY:Does mSUGRA survive precision data and current/possible LHC exclus ions simultaneously? DTSTART;VALUE=DATE-TIME:20110512T090000Z DTEND;VALUE=DATE-TIME:20110512T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-138401@cern.ch DESCRIPTION:\nBoth ATLAS and CMS have published results of SUSY searches p utting limits on SUSY parameters and masses. A non-discovery of SUSY in th e next two years would push these limits further. On the other hand precis ion data of low energy measurements and the dark matter relic density favo r light supersymmetry. Therefor we investigate if supersymmetry - and espe cially a constraint model as mSUGRA - does at all agree with precision dat a and LHC exclusions. We consider the current non-observation of supersymm etry with 35 pb-1 as well as the possible non-obervation with 1\, 2 and 7 fb-1 in a global fit using the framework Fittino.\n\n\nhttp://indico.cern. ch/conferenceDisplay.py?confId=138401 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=138401 END:VEVENT BEGIN:VEVENT SUMMARY:Beyond the MSSM\, from theory to events DTSTART;VALUE=DATE-TIME:20110519T090000Z DTEND;VALUE=DATE-TIME:20110519T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-137449@cern.ch DESCRIPTION:The following items will be discussed:\n- Basic introduction t o supersymmetry and on the MSSM\, showing how it is presently constrained\ n- Short review of popular non-minimal SUSY theories presently studied.\n- Introduction to FeynRules and how to implement the models above in an eas y way\, thanks to the recently achieved superspace module. \n- From FeynR ules to events which are ready-to-use for phenomenology and/or comparison to the data.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=137449 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=137449 END:VEVENT BEGIN:VEVENT SUMMARY:Hadronic SUSY searches with the Razor at CMS DTSTART;VALUE=DATE-TIME:20110526T090000Z DTEND;VALUE=DATE-TIME:20110526T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-135770@cern.ch DESCRIPTION:A search is performed for heavy particle pairs produced in col lisions with 35 pb^−1 of data collected by the CMS detector in 2010 at t he CERN Large Hadron Collider. The search is sensitive to generic SUSY mod els provided superpartner particles are kinematically accessible\, with mi nimal assumptions on properties of the Lightest Superpartner Particle (LSP ). The baseline selection is inclusive requiring only two or more reconstr ucted jets. The kinematic consistency of the selected events is tested aga inst the hypothesis of heavy particle pair production using the dimensionl ess razor (R) variable. The new physics signal is characterized by a broad peak in the distribution of MR\, where MR is an event-by-event indicator of the heavy particle scale.\n\nhttp://indico.cern.ch/conferenceDisplay.py ?confId=135770 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=135770 END:VEVENT BEGIN:VEVENT SUMMARY:BFKL-type generators for minimum-bias collisions and forward-physi cs at the LHC DTSTART;VALUE=DATE-TIME:20110609T090000Z DTEND;VALUE=DATE-TIME:20110609T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-142576@cern.ch DESCRIPTION:I will give a presentation of a new model for simulating exclu sive final states in minimum-bias collisions between hadrons. In a series of papers a Monte Carlo model has been developed based on Mueller's dipole picture of BFKL-evolution\, supplemented with non-leading corrections\, w hich has shown to be very successful in describing inclusive and semi-incl usive observables in hadron collisions. I will discuss a further extension of this model to also describe exclusive final states. This is a highly n on-trivial extension\, for which no guidance from perturbative QCD could b e found. Hence many choices had to be made based on semi-classical and phe nomenological arguments. The end result is a new event generator called DI PSY\, which can be used to simulate complete minimum-bias non-diffractive hadronic collision events. Although the description of data from the Tevat ron and LHC is not quite as good as for PYTHIA\, the new results are clear ly competitive\, and can be expected to improve with careful tuning. In ad dition\, as the model is very different from conventional multiple scatter ing scenaria\, the DIPSY program can be used to gain deeper insight in the soft and semi-hard processes involved both in hadronic and heavy ion coll isions.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=142576 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=142576 END:VEVENT BEGIN:VEVENT SUMMARY:Angular analysis of B_s to J/psi phi with the 2010 LHCb data DTSTART;VALUE=DATE-TIME:20110623T090000Z DTEND;VALUE=DATE-TIME:20110623T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-143602@cern.ch DESCRIPTION:The determination of the CP-violating phase phi_s in Bs0 -> Jp si phi decays is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model but can be significantly enhanced in many models of new physics. We will present a detailed breakd own of the phi_s analysis using 37pb^-1 of pp collisions at sqrt(s) = 7 Te V collected by LHCb in 2010. We find phi_s in [-2.7\, -0.5] radians @ 68% CL. In addition\, we discuss prospects for the phi_s measurement with 2011 data and highlight decay modes which can be used to enhance our understan ding of CP-violation in Bs0 mixing.\n\nhttp://indico.cern.ch/conferenceDis play.py?confId=143602 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=143602 END:VEVENT BEGIN:VEVENT SUMMARY:Single top cross-sections at CMS DTSTART;VALUE=DATE-TIME:20110630T090000Z DTEND;VALUE=DATE-TIME:20110630T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-140329@cern.ch DESCRIPTION:The measurement of the single-top cross-section requires a com plex analysis in order to separate signal and background. In this session\ , we discuss the analysis undertaken at the CMS experiment with 36pb^-1 of integrated luminosity. Leptonic decay channels with an electron or a muon in the final state are considered. After a selection optimized for the t- channel mode\, two different and complementary analyses have been performe d. The first analysis exploits the peculiar angular properties of the sign al with data-driven background estimates. The second approach is based on a multivariate analysis technique that probes the compatibility of the can didate events with the signal\, profiting of the excellent agreement of th e CMS simulation with the data. Both analyses confirm Tevatron's observati on of single top\, and their combination measures a cross section of 83.6 +- 29.8 (stat.+syst.) +- 3.3 (lumi.) pb which is consistent with the Stand ard Model prediction.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId =140329 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=140329 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs -> gamma gamma searches with ATLAS DTSTART;VALUE=DATE-TIME:20110707T090000Z DTEND;VALUE=DATE-TIME:20110707T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-145652@cern.ch DESCRIPTION:The search for the Standard Model-like Higgs boson decaying to two photons is one of the best ways to identify a low mass Higgs boson at LHC. The results of the search in this channel are presented\, based on t he ATLAS data collected in 2011. A discussion of the analysis of backgroun d contributions is included.\n\nhttp://indico.cern.ch/conferenceDisplay.py ?confId=145652 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=145652 END:VEVENT BEGIN:VEVENT SUMMARY:Herwiri 1.031: A New Approach to Parton Shower MCs in Precision QC D for the LHC DTSTART;VALUE=DATE-TIME:20110721T093000Z DTEND;VALUE=DATE-TIME:20110721T103000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-143604@cern.ch DESCRIPTION:In this presentation\, I will discuss a new approach to the MC event generator realization of parton showers for precision QCD applicati ons such as the physics of the LHC. I will give the essentials of the phys ical motivation for the approach\, which is based on the new IR-improved D GLAP-CS theory\, and show how it is now realized in the Herwig 6.5 environ ment in the new MC event generator Herwiri 1.031\, which has then a seamle ss interface to the MC@NLO framework of Frixione and Webber. The IR-improv ement means that\, in principle\, the k_0 cut-off parameters in Herwig 6.5 can be removed. I will show that the application of Herwiri 1.031 to the Z production process at the Tevatron yields for the soft p_T spectrum a be tter Chi2/d.o.f fit to the data than does the analogous application of Her wig 6.5\, both with and without the MC@NLO exact O(alpha_s). I will explai n why this is not an accident. I will also comment on the future direction s of the attendant project.\n\nhttp://indico.cern.ch/conferenceDisplay.py? confId=143604 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=143604 END:VEVENT BEGIN:VEVENT SUMMARY:Micro black holes and classicalons (for LHC) DTSTART;VALUE=DATE-TIME:20110728T093000Z DTEND;VALUE=DATE-TIME:20110728T103000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-140376@cern.ch DESCRIPTION:We explain why masses of black holes as well as of any other l ocalized objects must be quantized and discuss implications of this quanti zation for the LHC searches for micro black holes and other resonances.\n\ nhttp://indico.cern.ch/conferenceDisplay.py?confId=140376 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=140376 END:VEVENT BEGIN:VEVENT SUMMARY:Progress on event generation with Pythia 8 DTSTART;VALUE=DATE-TIME:20110804T093000Z DTEND;VALUE=DATE-TIME:20110804T103000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147638@cern.ch DESCRIPTION:The new version of the well-known Pythia event generator is in troduced and reviewed. Several recent studies are summarized\, such as imp roved process-generic behaviour of showers\, multiparton interactions with rescattering and an x-dependent proton size\, diffractive events\, and mo delling of BSM physics notably in Hidden Valley scenarios. Prospects and f irst experience with tunes to LHC data will also be presented\, and finall y future directions of program development.\n\nhttp://indico.cern.ch/confe renceDisplay.py?confId=147638 LOCATION:CERN TH Theory Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147638 END:VEVENT BEGIN:VEVENT SUMMARY:Search for Resonances in the Dilepton Mass Distribution in pp Coll isions at sqrt(s) = 7 TeV DTSTART;VALUE=DATE-TIME:20110811T090000Z DTEND;VALUE=DATE-TIME:20110811T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147455@cern.ch DESCRIPTION:Many extensions of the Standard Model predict the existence of additional\, heavy gauge bosons. Both ATLAS and CMS have performed search es for such high-mass states decaying to two charged leptons in the 2011 d ata. The results of these searches are discussed and differences between t he two experimental techniques are highlighted.\n\nhttp://indico.cern.ch/c onferenceDisplay.py?confId=147455 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147455 END:VEVENT BEGIN:VEVENT SUMMARY:Nonstandard Higgs decays in the NMSSM DTSTART;VALUE=DATE-TIME:20110818T090000Z DTEND;VALUE=DATE-TIME:20110818T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147457@cern.ch DESCRIPTION:We review the differences in Higgs phenomenology that arise in the NMSSM compared to the MSSM with the emphasis on Higgs decay modes. Th e focus will be on the decay mode of the standard model like Higgs boson\, h -> a a\, and related decay modes of the heavy CP even Higgs boson\, H - > Z a\, and the charged Higgs boson\, H^+ -> W^+ a. We summarize current experimental constraints and prospects for the LHC.\n\nhttp://indico.cern. ch/conferenceDisplay.py?confId=147457 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147457 END:VEVENT BEGIN:VEVENT SUMMARY:Latest H->WW Results from ATLAS and CMS DTSTART;VALUE=DATE-TIME:20110825T090000Z DTEND;VALUE=DATE-TIME:20110825T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-151836@cern.ch DESCRIPTION:The search for the Standard Model-like Higgs boson via the dec ay into two W bosons is presented\, based on data collected in 2011. The s earch in the dilepton final state is more powerful than any current result for intermediate mass Higgs bosons and has the highest sensitivity of the Higgs searches at the LHC. It is complemented by semi-leptonic WW decays which give good performance in the region of high mass. Recent results by ATLAS and CMS will be discussed and the current limits on the Higgs mass will be shown.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=151836 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=151836 END:VEVENT BEGIN:VEVENT SUMMARY:SFitter DTSTART;VALUE=DATE-TIME:20110901T090000Z DTEND;VALUE=DATE-TIME:20110901T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147458@cern.ch DESCRIPTION:SFitter is a tool to map many measurements onto a high-dimensi onal parameter space. It has been applied to reconstruct Higgs Yukawa coup lings from (simulated) LHC data and the parameters of a TeV-scale MSSM fro m both LHC and linear collider data. Thereby\, strong correlations between different measurements or degenerate best solutions do not pose any probl em and errors are fully propagated. Starting from a fully-dimensional log- likelihood map\, SFitter outputs one- and two-dimensional distributions us ing both Bayesian and Frequentist techniques\, as well as a list of best-f itting points.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=147458 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147458 END:VEVENT BEGIN:VEVENT SUMMARY:Angular analysis of B0 -> K*0 mu+ mu- at LHCb DTSTART;VALUE=DATE-TIME:20110915T090000Z DTEND;VALUE=DATE-TIME:20110915T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147463@cern.ch DESCRIPTION:The decay B0 -> K*0 mu+ mu- is a rare\, b -> s\, flavour chang ing neutral current process\, mediated by electroweak box and penguin diag rams in the Standard Model (SM). In extensions to the SM\, new particles c an enter in competing loop diagrams\, leading to large deviations in angul ar observables.\nA \n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=1 47463 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147463 END:VEVENT BEGIN:VEVENT SUMMARY:Issues facing current searches for BSM pair-production with invisi ble particles in the final state DTSTART;VALUE=DATE-TIME:20110922T090000Z DTEND;VALUE=DATE-TIME:20110922T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-147960@cern.ch DESCRIPTION:ATLAS and CMS have produced a number of searches for BSM pair production (usually in the context of SUSY -- di-squark\, di-gluino\, di-s lepton etc). They have used a number of different ways - alphaT\, meff\, m t2\, ptmiss/sqrt(sumpt) searches. This cross talk will hopefully begin by trying to give an indication of why the experiments haven't just done "one thing"\, indicating the problems that the experiments face\, and will the n attempt to promote discussion/thought on the best ways to proceed.\n\nht tp://indico.cern.ch/conferenceDisplay.py?confId=147960 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=147960 END:VEVENT BEGIN:VEVENT SUMMARY:Hadron production ratios in pp collisions at LHCb DTSTART;VALUE=DATE-TIME:20110929T090000Z DTEND;VALUE=DATE-TIME:20110929T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-154611@cern.ch DESCRIPTION:Measuring the production of light hadrons in proton--proton co llisions is crucial to understand both quark production and hadronisation at high energies. Hadron production ratios have been measured by LHCb at s qrt{s} = 0.9 and 7 TeV: the main analyses will be explained in detail and results will be presented showing information on baryon number transport a nd baryon over meson suppression.\n\nhttp://indico.cern.ch/conferenceDispl ay.py?confId=154611 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=154611 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Search in H → ZZ → 2l2q DTSTART;VALUE=DATE-TIME:20111006T090000Z DTEND;VALUE=DATE-TIME:20111006T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-156746@cern.ch DESCRIPTION:A search for the standard model Higgs boson decaying to two Z bosons with subsequent decay to a final state with two leptons and two qua rk-jets\, H → ZZ → llqq\, is presented. Data corresponding to an integ rated luminosity of 1.6 fb^-1 of LHC proton-proton collisions at the cente r-of-mass energy of √s = 7 TeV were collected and analyzed by the CMS ex periment. The selection to discriminate between signal and background even ts is based on kinematic and topological quantities\, which include the an gular spin correlations of the decay products. The events are classified a ccording to probability of the jets to originate from quarks of light or h eavy flavor or from gluons. No evidence for a Higgs boson is found and upp er limits on the Higgs boson production cross section are set in the range of masses between 226 GeV/c^2 and 600 GeV/c^2.\n\nhttp://indico.cern.ch/c onferenceDisplay.py?confId=156746 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=156746 END:VEVENT BEGIN:VEVENT SUMMARY:ATLAS Measurements of the b-jet cross-section with associated vect or boson production DTSTART;VALUE=DATE-TIME:20111013T090000Z DTEND;VALUE=DATE-TIME:20111013T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-158138@cern.ch DESCRIPTION:A measurement of the cross-section for vector boson production in association with jets containing B-hadrons is presented using 35 pb-1 of data collected by the ATLAS experiment in 2010. Such measurements provi de not only strong tests of perturbative QCD\, but are also large\, irredu cible backgrounds to searches for a low mass Higgs decaying to a pair of b -quarks produced in association with a vector boson. Theoretical predictio ns of the V+B production rate have large uncertainties and previous measur ements have reported discrepancies. The inclusive and differential cross-s ections in both the electron and muon channels will be shown. Comparisons will be made to recent theoretical predictions at the next-to-leading orde r.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=158138 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=158138 END:VEVENT BEGIN:VEVENT SUMMARY:Search for Resonances in the Dijet Mass Spectrum from 7 TeV pp Col lisions DTSTART;VALUE=DATE-TIME:20111020T090000Z DTEND;VALUE=DATE-TIME:20111020T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-156759@cern.ch DESCRIPTION:A search for narrow resonances with a mass of at least 1 TeV i n the dijet mass spectrum is performed using pp collisions at √s = 7 TeV corresponding to an integrated luminosity of 1fb-1\, collected by the CMS experiment at the LHC. No resonances are observed. Upper limits at the 95 %\, confidence level are presented on the product of the resonance cross s ection\, branching fraction into dijets\, and acceptance\, separately for decays into quark-quark\, quark-gluon\, and gluon-gluon pairs. The data ex clude new particles predicted in th following models at 95% confidence lev el: string resonances with mass less than 4.00 TeV\, E6 diquarks with mass less than 3.52 TeV\, excited quarks with mass less than 2.49 TeV\, axiglu ons and colorons with mass less than 2.47 TeV\, and W' bosons with mass le ss than 1.51 TeV.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=156 759 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=156759 END:VEVENT BEGIN:VEVENT SUMMARY:Charm CP violation searches at LHCb DTSTART;VALUE=DATE-TIME:20111027T090000Z DTEND;VALUE=DATE-TIME:20111027T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-154788@cern.ch DESCRIPTION:Searches for direct and indirect CP violation in charm at LHCb are discussed. Current results based on the analyses of two-body decays a re presented. Their implications and the impact of future LHCb measurement s is discussed.\n\nLHCb has measured the D0 mixing and CP violation parame ters y_CP and A_Gamma based on data taken in 2010 resulting in y_CP = (5.5 +/- 6.3(stat) +/- 4.1(syst)) x 10^-3\, and A_Gamma = (-5.9 +/- 5.9(stat) +/- 2.1(syst)) x 10^-3. Furthermore\, the difference in time-integrated CP violation between the K+K- and pi+pi- final states has been measured to D eltaA_CP = (-2.8 +/- 7.0(stat) +/- 2.5(syst)) x 10^-3.\n\nThe prospects fo r analyses based on the 30 times larger 2011 dataset are discussed.\n\nhtt p://indico.cern.ch/conferenceDisplay.py?confId=154788 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=154788 END:VEVENT BEGIN:VEVENT SUMMARY:Towards q q --> W W at NNLO at the LHC DTSTART;VALUE=DATE-TIME:20111110T100000Z DTEND;VALUE=DATE-TIME:20111110T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-157485@cern.ch DESCRIPTION:We will discuss the result with full mass dependence for the t wo-loop virtual QCD corrections to the W boson pair production in the quar k-anti-quark annihilation channel. We will explain how the result is obtai ned as a combination of a deep expansion in the mass around the high energ y limit and of a numerical integration of a system of differential equatio ns.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=157485 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=157485 END:VEVENT BEGIN:VEVENT SUMMARY:Top quark production asymmetries at the Tevatron\, focusing on the recent D0 results DTSTART;VALUE=DATE-TIME:20111117T100000Z DTEND;VALUE=DATE-TIME:20111117T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-160451@cern.ch DESCRIPTION:Given the early successes of the LHC physics program\, the top quark's production asymmetry is one of the few phenomena best studied at the Tevatron. Recent measurements of the top quark's forward-backward prod uction asymmetries from the CDF and D0 collaborations found asymmetries hi gher than predicted. 3-sigma deviations were seen in both experiments. The se measurements will be reviewed\, focusing on the recent D0 results.\n\nh ttp://indico.cern.ch/conferenceDisplay.py?confId=160451 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=160451 END:VEVENT BEGIN:VEVENT SUMMARY:Aaron Armbruster: Details on the recent ATLAS/CMS Higgs combinatio n DTSTART;VALUE=DATE-TIME:20111124T100000Z DTEND;VALUE=DATE-TIME:20111124T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-155203@cern.ch DESCRIPTION:Combined Standard Model Higgs boson searches with up to 2.3 fb -1 of pp collisions at √s = 7 TeV at the LHC\n\nA combination of searche s for the Standard Model (SM) Higgs boson by the ATLAS and CMS experiments at the LHC is presented. The dataset used corresponds to an integrated lu minosity per experiment ranging from 1.0 to 2.3 fb-1 of pp collisions at a centre-of-mass energy of 7 TeV. The combination includes searches using t he following Higgs boson decay signatures: H→γγ\, H→bb\, H→ττ\, H→WW(lνlν) and H→ZZ(4l\,2l2ν\,2l2q\,2l2τ). The SM Higgs boson mass es tested in these searches range from 110 to 600 GeV/c2.\n\nhttp://indico .cern.ch/conferenceDisplay.py?confId=155203 LOCATION:CERN 40-S2-B01 - Salle Bohr URL:http://indico.cern.ch/conferenceDisplay.py?confId=155203 END:VEVENT BEGIN:VEVENT SUMMARY:Simplified Models DTSTART;VALUE=DATE-TIME:20111201T100000Z DTEND;VALUE=DATE-TIME:20111201T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-156294@cern.ch DESCRIPTION:One of the most promising extensions of the Standard Model\, s upersymmetry (SUSY)\, is the central focus of many searches by the LHC exp eriments. A large set of simplified models have been proposed for aiding in the understanding of these limits\, and both ATLAS and CMS have provide d exclusion results for several of these models. This talk will discuss t he details of these simplified models: why they are useful\, how they are constructed\, how well they cover "complex" theories like the CMSSM\, how their kinematics compare with complete model points\, and how one can use limits on simplified models to set exclusion limits in complete SUSY model s.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=156294 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=156294 END:VEVENT BEGIN:VEVENT SUMMARY:Search for Supersymmetry with two and three leptons DTSTART;VALUE=DATE-TIME:20111208T100000Z DTEND;VALUE=DATE-TIME:20111208T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-163009@cern.ch DESCRIPTION:The LHC experiments have each collected already about 5 femtob arn inverse of data at sqrt(s)=7 TeV and already presented the results of several searches for supersymmetry with a fraction of that. The most far r eaching results in terms of mass exclusions are often based on searches wi th multi-jets and missing transverse energy without or with a single lepto n. The event signatures of supersymmetric production can nevertheless vary significantly with the details of the model. It is plausible that SUSY pr oduction could appear as an excess of events with several isolated leptons from gaugino or slepton decays. The gauginos and sleptons can either appe ar in the cascade decay of strongly produced squarks and gluinos or by di rect production via the weak interaction of gauginos and sleptons. Recent results along these lines and corresponding prospects for 2012 data are di scussed.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=163009 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=163009 END:VEVENT BEGIN:VEVENT SUMMARY:Discussion of the status of the ATLAS and CMS searches for the Sta ndard Model Higgs boson DTSTART;VALUE=DATE-TIME:20111215T133000Z DTEND;VALUE=DATE-TIME:20111215T150000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-166075@cern.ch DESCRIPTION:Open discussion of the very latest results presented at CERN o n Dec 13th. The discussion will focus on some of the most sensitive channe ls particularly at low mass: gammagamma\, WW and ZZ\, presented by four me mbers of ATLAS and CMS.\nPlease note the UNUSUAL start time!\n Abdelhak D jouadi [TH]                                        --  Introductory remarks\n \n Boris Mangano [CMS]                                         --   W W -> l nu l nu\n \n Fabien Tarrade [Atlas]                                         --  Z Z -> 4 l\n \n Krisztian Peters [Atlas] & Josh Bendavid [CMS]   --  gamma gamma\n \n Open discussion\n\n------------------------------------------------------ -----------------------------------------------\nDo not forget\, there are cookies and beverages in the back and outside of the room.\n\nhttp://indi co.cern.ch/conferenceDisplay.py?confId=166075 LOCATION:CERN TH Theory Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=166075 END:VEVENT BEGIN:VEVENT SUMMARY:CP violation of charm: experimental overview (part of CPV workshop ) DTSTART;VALUE=DATE-TIME:20120112T100000Z DTEND;VALUE=DATE-TIME:20120112T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-170223@cern.ch DESCRIPTION:Searches for direct and indirect CP asymmetry in the charm sec tor at LHCb experiment are discussed. The results of a search for time-int egrated CP violation in D0 -> h- h+ (h=K\,pi) decays\, performed with 0.6 fb-1 of data collected by LHCb in 2011\, are presented. The difference in CP asymmetry between D0 -> K- K+ and D0 -> pi- pi+\, Delta A_CP\, is measu red to be [-0.82 +- 0.21 (stat.) +- 0.11 (syst.)]%. This differs from the hypothesis of CP conservation by 3.5 sigma.\nThe current results on other searches for CP violation in charm at LHCb in two- and three-body decays will be summarized.\nProspects for future measurements and their expected precision with the full integrated luminosity of 1.1 fb-1 collected in 201 1 will be briefly discussed.\n\nhttp://indico.cern.ch/conferenceDisplay.py ?confId=170223 LOCATION:CERN 4-3-006 - TH Theory Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=170223 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Underproduction at the LHC DTSTART;VALUE=DATE-TIME:20120119T100000Z DTEND;VALUE=DATE-TIME:20120119T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-170453@cern.ch DESCRIPTION:In my talk I will show that production of the Higgs boson thro ugh gluon-fusion may be suppressed in the presence of colored scalars. Sub stantial destructive interference between the top quark diagrams and color ed scalar diagrams is possible due to cancellations between the real (and also imaginary) parts of the amplitudes. As an example\, I consider a colo r-octet scalar that has a negative\, order one coupling to the Higgs doubl et. As a result gluon fusion can be suppressed by more than an order of ma gnitude when the scalar mass is below a few hundred GeV\, while milder sup pressions occur for larger scalar masses or smaller couplings. Thus\, the Standard Model extended with only one particle can evade the full range of present LHC exclusion limits on the Higgs mass. The colored scalars\, how ever\, would be produced in pairs with a large rate at the LHC\, leading t o multi-jet final states to which the LHC experiments are now becoming sen sitive.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=170453 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=170453 END:VEVENT BEGIN:VEVENT SUMMARY:Inference. A tutorial for phenomenologists and others DTSTART;VALUE=DATE-TIME:20120126T100000Z DTEND;VALUE=DATE-TIME:20120126T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-174275@cern.ch DESCRIPTION:We will discuss how a phenomenologist can estimate parameters of his/her own model\, using available data\, basic statistics\, and eleme ntary Mathematica code. By thinking together of possible caveats\, I hope this will bring experimentalists and theorists one step closer.\n\nhttp:// indico.cern.ch/conferenceDisplay.py?confId=174275 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=174275 END:VEVENT BEGIN:VEVENT SUMMARY:Angular Scaling in Jets DTSTART;VALUE=DATE-TIME:20120202T100000Z DTEND;VALUE=DATE-TIME:20120202T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-174682@cern.ch DESCRIPTION:Jets in QCD are nearly-scale invariant fractal systems. From t his behavior\, we introduced a two-particle angular correlation function w hich probes the scaling behavior of a jet over a range of angles. I will d iscuss how this observable can be used for identifying jets from heavy par ticle decay\, for probing perturbative QCD and for studying the non-pertur bative physics present at a hadron collider.\n\nhttp://indico.cern.ch/conf erenceDisplay.py?confId=174682 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=174682 END:VEVENT BEGIN:VEVENT SUMMARY:Looking for Higgs and top jets with the Template Overlap Method DTSTART;VALUE=DATE-TIME:20120209T100000Z DTEND;VALUE=DATE-TIME:20120209T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-176523@cern.ch DESCRIPTION:At the LHC experiments jets are copiously produced. However\, due to soft collinear divergencies\, narrow jets tend to be of low mass.\n Of particular interest are those uncommon events where a jet of a very lar ge mass is obtained.\nThe large mass yield a new perturbative scale which provides us with a glimpse into the mechanism of showering in a new kinema tical regime. Maybe more importantly\, narrow jets of electroweak masses ( or above) are the focus of various beyond the standard model searches rela ted to strong dynamics & extra dimension\, supersymmetry and even the cele brated Higgs boson. \nWe introduce the template overlap method\, that aims to recognize and fully capture the spiky nature of inner-jet energy flow that arises from decay of boosted heavy particles.\n\nhttp://indico.cern.c h/conferenceDisplay.py?confId=176523 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=176523 END:VEVENT BEGIN:VEVENT SUMMARY:WZ and ZZ production at Dzero DTSTART;VALUE=DATE-TIME:20120216T100000Z DTEND;VALUE=DATE-TIME:20120216T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-176462@cern.ch DESCRIPTION:I will discuss recent results on WZ and ZZ production with lep tonic final states from Dzero.\nThese are two of the lowest cross section processes that have been observed at the Tevatron and are potentially sens itive to many new physics effects. \nThis analysis uses 8.6 inverse femtob arns of integrated luminosity\, and significantly improves on previous cro ss section measurements for these processes.\n\nhttp://indico.cern.ch/conf erenceDisplay.py?confId=176462 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=176462 END:VEVENT BEGIN:VEVENT SUMMARY:Energy Loss in Heavy Ion Collisions DTSTART;VALUE=DATE-TIME:20120223T100000Z DTEND;VALUE=DATE-TIME:20120223T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-175336@cern.ch DESCRIPTION:I will review some of the current understanding of jet evoluti on in the presence of QCD matter\,specially in connection with the new ex perimental data from the LHC. The previous data from RHIC\, their interpre tations\, theoretical limitations and remaining puzzles will also be menti oned.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=175336 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=175336 END:VEVENT BEGIN:VEVENT SUMMARY:W+Jets Measurements with ATLAS DTSTART;VALUE=DATE-TIME:20120301T100000Z DTEND;VALUE=DATE-TIME:20120301T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-175334@cern.ch DESCRIPTION:Precision studies of well-known Standard Model particles such as the W boson in association with jets are critical building blocks for u nderstanding the SM as well as searches for new physics. In this talk\, I will discuss a recent measurement of W+jets using the ATLAS detector and t he full 2010 data sample of 36pb-1. At each multiplicity\, cross sections were measured as a function of jet transverse momentum\, the scalar sum of the transverse momenta of the charged lepton\, missing transverse momentu m\, and all jets\, the invariant mass spectra of jets\, and the rapidity d istributions of various combinations of leptons and final-state jets. The data was compared to SHERPA\, ALPGEN\, PYTHIA and Blackhat-Sherpa and foun d to be mostly in good agreement. I will highlight the main systematic unc ertainties associated to this measurement\, namely the jet energy scale. A lso I will discuss the latest in NLO calculations from Blackhat-Sherpa.\n\ nhttp://indico.cern.ch/conferenceDisplay.py?confId=175334 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=175334 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Search in H → ZZ → 4l DTSTART;VALUE=DATE-TIME:20120308T100000Z DTEND;VALUE=DATE-TIME:20120308T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-175333@cern.ch DESCRIPTION:The leptonic decays of the Higgs boson in the ZZ* channel yiel d what is known as the golden channel due to its clean signature and good total invariant mass resolution. The full 2011 dataset analyses from ATLAS and CMS will be introduced with a focus on methods. The speakers will cov er the basics of each analysis and discuss in detail the differences betwe en the two.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=175333 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=175333 END:VEVENT BEGIN:VEVENT SUMMARY:RAA at ALICE and CMS DTSTART;VALUE=DATE-TIME:20120315T100000Z DTEND;VALUE=DATE-TIME:20120315T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-177518@cern.ch DESCRIPTION:The transverse momentum spectra of charged particles have been measured in pp and PbPb collisions at sqrt(s) = 2.76 TeV by the CMS and A LICE experiments at the LHC. Both analyses will be presented\, with an emp hasis on the similarities and differences in approach taken by the two col laborations.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=177518 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=177518 END:VEVENT BEGIN:VEVENT SUMMARY:Measuring the top mass at CMS in the lepton + jets final state DTSTART;VALUE=DATE-TIME:20120322T100000Z DTEND;VALUE=DATE-TIME:20120322T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-176554@cern.ch DESCRIPTION:The mass of the top quark is a fundamental parameter of the St andard Model. Measurements of the top quark mass using events with one cha rged lepton and at least four jets in the final state are presented using data collected by the CMS experiment during the year 2011\, in proton-prot on collisions at the LHC at a centre-of-mass energy of 7 TeV. The complete kinematics of each event is reconstructed using a constrained fit. For ea ch event a likelihood is calculated as a function of assumed value of top quark mass and the probability that the event is a top quark-antiquark \np air event or not.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=176 554 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=176554 END:VEVENT BEGIN:VEVENT SUMMARY:No Cross Talk (LPCC Workshop on the Implications of LHC results) DTSTART;VALUE=DATE-TIME:20120329T090000Z DTEND;VALUE=DATE-TIME:20120329T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-176457@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=176457 LOCATION:CERN URL:http://indico.cern.ch/conferenceDisplay.py?confId=176457 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs->bb Searches with ATLAS\, CMS and at the Tevatron DTSTART;VALUE=DATE-TIME:20120405T090000Z DTEND;VALUE=DATE-TIME:20120405T101500Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-182923@cern.ch DESCRIPTION:According to the predictions from the Standard Model\, a low m ass Higgs boson decays preferentially into a pair of b-quarks. Despite lar ge backgrounds\, this decay mode has been studied both at the Tevatron and at the LHC in the associated production with a weak vector boson (W/Z). T his has been done in the following channels: W(μν)H\, W(eν)H\, Z(μμ)H \, Z(ee)H and Z(νν)H. We will discuss the most recent analyses published by the ATLAS\, CDF\, CMS and D0 collaborations and recent progress in b-j et identification\, analysis techniques (including the use of MVA tools) a nd the crucial aspects of validating both the background description in th e signal region and the strategies employed. Finally\, the most recent upp er limits on the VH production cross section times the H to bb branching r atio\, with respect to the expectations for a Standard Model Higgs boson\, will be presented.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=1 82923 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=182923 END:VEVENT BEGIN:VEVENT SUMMARY:Lepto-Quarks at ATLAS and CMS DTSTART;VALUE=DATE-TIME:20120412T090000Z DTEND;VALUE=DATE-TIME:20120412T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-182529@cern.ch DESCRIPTION:The results of a search for the production of first\, second a nd third\ngeneration scalar leptoquarks are presented. Searches for the f irst\ntwo generations are presented by the ATLAS experiment for final stat es\nconsisting of either two oppositely charged leptons and at least two\n jets or a charged lepton plus missing transverse momentum and at least\ntw o jets. The event yields in the signal regions are found to be\nconsistent with the Standard Model background expectations. The\nproduction of first and second generation leptoquarks is excluded for\nleptoquark masses mLQ\ n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=182529 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=182529 END:VEVENT BEGIN:VEVENT SUMMARY:Quark and Gluon Tagging at the LHC DTSTART;VALUE=DATE-TIME:20120419T090000Z DTEND;VALUE=DATE-TIME:20120419T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-180595@cern.ch DESCRIPTION:Distinguishing light-quark jets from gluon jets on an event-by -event basis could significantly enhance the reach for many new physics se arches at the Large Hadron Collider. Through an exhaustive search of exist ing and novel jet substructure observables\, we find that a multivariate a pproach can filter out over 95% of the gluon jets while keeping more than half of the light-quark jets. Moreover\, a combination of two simple varia bles\, the charge track multiplicity and the p_T-weighted linear radial mo ment (girth)\, can achieve similar results. I will discuss applications an d address theoretical issues in the definitions of quark and gluon jets.\n \nhttp://indico.cern.ch/conferenceDisplay.py?confId=180595 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=180595 END:VEVENT BEGIN:VEVENT SUMMARY:NLO corrections to top quark pair production and decay\, and the t op quark forward--backward aymmetry in parton showers DTSTART;VALUE=DATE-TIME:20120503T090000Z DTEND;VALUE=DATE-TIME:20120503T101500Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-182032@cern.ch DESCRIPTION:NLO part by Keith Ellis\nThe implementation of top production and decay processes in the parton-level Monte Carlo program MCFM is descri bed. By treating the top quark as being on-shell\, one can factorize the a mplitudes for top-pair production\, s-channel single-top production\, and t-channel single-top production into the product of an amplitude for produ ction and an amplitude for decay. In this way one can retain all spin corr elations. Both the production and the decay amplitudes are calculated cons istently at next-to-leading order in alphas. The full dependence on the b- quark mass is also kept. Phenomenological results are presented for variou s kinematic distributions at the LHC and for the top quark forward--backwa rd asymmetry at the Tevatron.Event generator by Jan Winter\nParton showers incorporating soft colour coherence can generate a forward--backward asym metry in top quark pair production. The origin of this feature is discusse d and results of a comparison between different Monte Carlo event generato rs are shown.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=182032 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=182032 END:VEVENT BEGIN:VEVENT SUMMARY:Measurement of isospin asymmetries in LHCb DTSTART;VALUE=DATE-TIME:20120510T090000Z DTEND;VALUE=DATE-TIME:20120510T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-182031@cern.ch DESCRIPTION:The LHCb experiment has measured the isospin asymmetry (AI) in B->K(*)MuMu decays with 1fb-1 of integrated luminosity collected during 2 011. The SM prediction for AI is O(1%). Previous measurements\, particular ly by BaBar collaboration have measured a significantly negative AI in the low di-muon invariant mass region. This measurement has been an anomaly i n B physics for the last few years (the latest HFAG average is over 4sigma from zero). The large b-bbar cross section at the LHC gives LHCb the sens itivity to either confirm this anomaly or finally put this unexpected resu lt to rest.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=182031 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=182031 END:VEVENT BEGIN:VEVENT SUMMARY:Collective flow and anisotropies in heavy ion collisions DTSTART;VALUE=DATE-TIME:20120515T091500Z DTEND;VALUE=DATE-TIME:20120515T101500Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-180498@cern.ch DESCRIPTION:Hydrodynamic or collective effects dominate the modern dynamic al picture of a heavy ion collision. We discuss the origin\, evolution and detection of local and event-by-event anisotropic fluctuations in that pi cture. We argue that interesting information about the initial state\, the early time dynamics and the medium properties can be extracted from measu ring multi-particle correlation functions. To that end it is important to separate collective flow from other correlations as the arise for example from resonance decays. We discuss and compare different methods to do that putting special emphasis on the recently developed analytic multi-particl e correlation technique (Q-cumulants).\n\nhttp://indico.cern.ch/conference Display.py?confId=180498 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=180498 END:VEVENT BEGIN:VEVENT SUMMARY:Direct and Indirect dark matter searches in the framework of effec tive interactions DTSTART;VALUE=DATE-TIME:20120524T090000Z DTEND;VALUE=DATE-TIME:20120524T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-184053@cern.ch DESCRIPTION:The effective interaction formalism allows to compare results among different strategies of searching for Dark Matter (Direct\, Indirect \, collider) as well as with the requirement of the correct relic abundanc e. We briefly discuss its working principle. We then discuss the assumptio ns under which it is applied to actually translate experimental results of Direct and Indirect detection into a determination of the DM properties.\ n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=184053 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=184053 END:VEVENT BEGIN:VEVENT SUMMARY:Direct dark matter searches: Monojets at ATLAS and CMS DTSTART;VALUE=DATE-TIME:20120531T090000Z DTEND;VALUE=DATE-TIME:20120531T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-184054@cern.ch DESCRIPTION:Monojet final states made up of a single high-pt jet accompani ed by no other observable object to balance its momentum are an important BSM search channel at the LHC. Dominant SM background processes for monoje ts are Z/W+jet production\, where the Z decays invisibly to neutrinos or t he W decays to a a lepton and a neutrino and the lepton is not reconstruct ed.\n\nWe will discuss the CMS and ATLAS monojet analyses and in particula r point out differences in the selection cuts or background estimation pro cedures. We will then move on to interpretations of the monojet measuremen ts\, focussing in particular on WIMP interpretations in an effective field theory approach.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=184 054 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=184054 END:VEVENT BEGIN:VEVENT SUMMARY:Newly discovered b-hadrons at CMS and ATLAS DTSTART;VALUE=DATE-TIME:20120614T090000Z DTEND;VALUE=DATE-TIME:20120614T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-190042@cern.ch DESCRIPTION:The observation of an excited b baryon via its strong decay in to Xi(b)^- pi^+ (plus charge conjugates) by the CMS experiment is reported . The measurement uses a data sample of pp collisions at sqrt(s) = 7 TeV a t the LHC\, corresponding to an integrated luminosity of 5.3 inverse femto barns. The known Xi(b)^- baryon is reconstructed via the decay chain Xi(b) ^- to J/psi Xi^- to mu^+ mu^- Lambda^0 pi^-\, with Lambda^0 to p pi^-. \n\ nThe chi_b(nP) quarkonium states are produced in proton-proton collisions at the Large Hadron Collider (LHC) at sqrt(s) = 7 TeV and recorded by the ATLAS detector. Using a data sample corresponding to an integrated luminos ity of 4.4 fb^-1\, these states are reconstructed through their radiative decays to Upsilon(1S\,2S) with Upsilon->mu+mu-.\n\nhttp://indico.cern.ch/c onferenceDisplay.py?confId=190042 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=190042 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs spectroscopy at 125 GeV DTSTART;VALUE=DATE-TIME:20120621T090000Z DTEND;VALUE=DATE-TIME:20120621T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-194868@cern.ch DESCRIPTION:I discuss approaches and prospects to measure Higgs properties such as invisible branching ratios and spin and CP for mh=125 GeV.\n\nhtt p://indico.cern.ch/conferenceDisplay.py?confId=194868 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=194868 END:VEVENT BEGIN:VEVENT SUMMARY: Single top cross-sections in the t and tW channels DTSTART;VALUE=DATE-TIME:20120628T090000Z DTEND;VALUE=DATE-TIME:20120628T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-195414@cern.ch DESCRIPTION:We present measurements of the single top-quark cross sections in t-channel and tW-channel production in pp collisions at the LHC\, made with the CMS and ATLAS detectors. Particular emphasis will be placed on d iscussing the details of each analysis in order to stimulate a lively disc ussion with the audience.\n\nhttp://indico.cern.ch/conferenceDisplay.py?co nfId=195414 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=195414 END:VEVENT BEGIN:VEVENT SUMMARY:SUSY Multijet Searches DTSTART;VALUE=DATE-TIME:20120712T090000Z DTEND;VALUE=DATE-TIME:20120712T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-195266@cern.ch DESCRIPTION:Results are presented of a search for new particles decaying t o large numbers of jets in association with missing transverse momentum\, using 4.7 fb^-1 of pp collision data at sqrt(s) = 7 TeV collected by the A TLAS experiment at the Large Hadron Collider in 2011. The event selection requires missing transverse momentum\, no isolated electrons or muons\, an d from >=6 to >=9 jets. No evidence is found for physics beyond the Standa rd Model. The results are interpreted in the context of a MSUGRA/CMSSM sup ersymmetric model\, where\, for large universal scalar mass m_0\, gluino m asses smaller than 840 GeV are excluded at the 95% confidence level\, exte nding previously published limits. Within a simplified model containing on ly a gluino octet and a neutralino\, gluino masses smaller than 870 GeV ar e similarly excluded for neutralino masses below 100 GeV.\n\nhttp://indico .cern.ch/conferenceDisplay.py?confId=195266 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=195266 END:VEVENT BEGIN:VEVENT SUMMARY:Summary of stop searches in ATLAS DTSTART;VALUE=DATE-TIME:20120719T090000Z DTEND;VALUE=DATE-TIME:20120719T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-196108@cern.ch DESCRIPTION:Today's cross-talk session will be an overview of the SUSY sto p searches in ATLAS\, by Stephanie Majewski of BNL. Emphasis will be given to heavy-stop searches\, with zero or one leptons in the final states.\n\ nhttp://indico.cern.ch/conferenceDisplay.py?confId=196108 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=196108 END:VEVENT BEGIN:VEVENT SUMMARY:Search for pair production of heavy particles that decay to a tau and a b quark at CMS DTSTART;VALUE=DATE-TIME:20120726T090000Z DTEND;VALUE=DATE-TIME:20120726T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-199259@cern.ch DESCRIPTION:A search for third generation scalar leptoquarks using events from a data sample of pp collisions corresponding to an integrated luminos ity of 4.8 fb-1 \, collected by the CMS detector at the LHC with sqrt(s) = 7 TeV\, and containing two taus and two b jets\, is presented. The number of observed events is found to be in agreement with the standard model pr ediction. A 95% CL limit is set on the leptoquark pair production cross se ction times beta^2 \, where beta is the branching fraction of leptoquark t o a tau and a b quark. The third generation leptoquarks with masses below 525~\\GeV (for $\\beta=1$) and SU(5) vector leptoquarks with masses below 760~GeV are excluded at 95\\% CL. Limits are also set on the cross section for pair production of the supersymmetric partner of the top quark (stop) in R-parity violating supersymmetric scenario. Stops with masses below 45 3 GeV are excluded at 95% CL for a typical benchmark scenario\, assuming c oupling between stop\, tau\, and b quark\, lambda'_333 = 1. Both of these results represent the most stringent mass limits on these particles to dat e. The stringent limits on lambda'_333 are also set excluding coupling val ues not ruled out by indirect bounds.\n\nhttp://indico.cern.ch/conferenceD isplay.py?confId=199259 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=199259 END:VEVENT BEGIN:VEVENT SUMMARY:Semileptonic asymmetry in B_s decays DTSTART;VALUE=DATE-TIME:20120802T090000Z DTEND;VALUE=DATE-TIME:20120802T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-201489@cern.ch DESCRIPTION:The CP violating flavour specific asymmetry in B_s semileptoni c decays is measured using 1 fb^-1 of pp collisions at s^1/2 = 7 TeV.\nWe obtain a_sl^s = (-0.24 +- 0.54 +- 0.33) x10^-2\, which agrees with predict ions of the Standard Model.\n\nhttp://indico.cern.ch/conferenceDisplay.py? confId=201489 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=201489 END:VEVENT BEGIN:VEVENT SUMMARY:Search for qW/qZ/WW/WZ/ZZ-Resonances in the W/Z-tagged Dijet Mass Spectrum from 7 TeV pp Collisions at CMS DTSTART;VALUE=DATE-TIME:20120809T090000Z DTEND;VALUE=DATE-TIME:20120809T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-197243@cern.ch DESCRIPTION:We search for massive resonances decaying into a quark and a v ector boson\, qW or qZ\, or a pair of vector bosons\, WW\, WZ or ZZ\, wher e each vector boson decays hadronically. We focus on resonances which are sufficiently heavy to result in energetic vector bosons\; the decay produc ts of each vector boson are then merged into a single jet\, and the event effectively has a dijet topology. The analysis relies on recently develope d techniques in the area of jet substructure and uses them to suppress QCD dijet background. The data sample corresponds to an integrated luminosity of 5.0~fb−1 of proton-proton collisions collected in the CMS experiment at the LHC. We set a 95\\% C.L. lower limit on the mass of excited quark resonances decaying into qW (qZ) at 2.32 TeV (2.04 TeV).\n\nhttp://indico. cern.ch/conferenceDisplay.py?confId=197243 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=197243 END:VEVENT BEGIN:VEVENT SUMMARY:Scattering Amplitudes with Open Loops [joint with Particle Physi cs Seminar] DTSTART;VALUE=DATE-TIME:20120817T120000Z DTEND;VALUE=DATE-TIME:20120817T130000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-201164@cern.ch DESCRIPTION:OpenLoops is an automatic and fully flexible generator of one- loop scattering amplitudes. It is based on a new algorithmic concept intro duced in arXiv:1111.5206 [hep-ph]\, which permits to compute one-loop corr ections to multi-particle Standard Model processes in a highly efficient a nd numerically stable way. After a presentation of the OpenLoops algorithm \, in this talk I will illustrate its technical performance and demonstrat e the possibility to compute hadronic NLO cross sections in a fully automa tised way using OpenLoops and Sherpa.\n\nhttp://indico.cern.ch/conferenceD isplay.py?confId=201164 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=201164 END:VEVENT BEGIN:VEVENT SUMMARY:What the fit is that Boson? DTSTART;VALUE=DATE-TIME:20120823T090000Z DTEND;VALUE=DATE-TIME:20120823T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-203585@cern.ch DESCRIPTION:We will discuss the rapidly developing area of global fits to the properties of the recently discovered Boson\, covering\n\n Basic fit methodology and EFT. (i.e. what the fit is going on here?)\n \n Current s tatus of the Higgs hypothesis\, its evolution in the fits in recent months \, and some brief fit scaling prospects.\n \n Three applications of inter est will be very briefly flashed. Fits to higher dimensional operators\, a n invisible branching ratio\, and Natural SUSY (stops).\n \n (+ epsilon) As a bonus\, recently developed and lovely stop exclusions in difficult to reach parameter space at colliders (Mchi0 >100 GeV) will be shown and jus tified. Many pretty plots might be seen through clouds of chalk dust. The speaker will attempt to not get overly excited and talk at a reasonable pa ce\, but no guarantees are given.\n\n\nhttp://indico.cern.ch/conferenceDis play.py?confId=203585 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=203585 END:VEVENT BEGIN:VEVENT SUMMARY:Cross section ratios between different CM energies at the LHC: Pre cision measurements and BSM sensitivity. DTSTART;VALUE=DATE-TIME:20120830T090000Z DTEND;VALUE=DATE-TIME:20120830T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-201165@cern.ch DESCRIPTION:The staged increase of the LHC beam energy provides a new clas s of interesting observables\, namely ratios and double ratios of cross se ctions of various hard processes. The large degree of correlation of theor etical systematics in the cross section calculations at different energies leads to highly precise predictions for such ratios. We discuss several e xamples of such ratios\, and discuss their possible implications\, both in terms of opportunities for precision measurements and in terms of sensiti vity to Beyond the Standard Model dynamics.\n\nhttp://indico.cern.ch/confe renceDisplay.py?confId=201165 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=201165 END:VEVENT BEGIN:VEVENT SUMMARY:CERN Closed (No Crosstalk) DTSTART;VALUE=DATE-TIME:20120906T090000Z DTEND;VALUE=DATE-TIME:20120906T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-202250@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=202250 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=202250 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs anomalous couplings and multiparticle production DTSTART;VALUE=DATE-TIME:20120913T090000Z DTEND;VALUE=DATE-TIME:20120913T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-206384@cern.ch DESCRIPTION:If the electroweak symmetry breaking is originated by a strong ly coupled sector\, as for instance in composite Higgs models\, the Higgs boson can have non-SM couplings. In such cases\, the Higgs boson and the l ongitudinally polarized electroweak gauge bosons (V_L's) will interact str ongly and at high energies there will occur an onset of multi Higgs and V_ L production signalling the breakdown of perturbation theory. \nWe study t he sensitivity to Higgs couplings in inelastic 2 to 3 and 2 to 4 processes \, where the final states include both Higgs and V_L's. We find that\, due to the stronger cancellations in the corresponding amplitudes compared to the usual 2 to 2 processes\, large enhancements with respect to the SM ca n arise even for small deviations of the couplings from their SM values. W e briefly explore the possible consequences of this multiparticle producti on at the LHC.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=206384 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=206384 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs from the bottom up DTSTART;VALUE=DATE-TIME:20120920T093000Z DTEND;VALUE=DATE-TIME:20120920T103000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-202500@cern.ch DESCRIPTION:I will review some of the simple properties that make a Higgs a Higgs\,\ncontrasting with a variety of nonstandard Higgs look-alikes. Fo cusing\non the decays into vector bosons\, I will describe the optimal str ategy\nfor discriminating a Standard Model Higgs from something else.\n\nh ttp://indico.cern.ch/conferenceDisplay.py?confId=202500 LOCATION:CERN Main Auditorium URL:http://indico.cern.ch/conferenceDisplay.py?confId=202500 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs Properties from ATLAS and CMS DTSTART;VALUE=DATE-TIME:20120927T090000Z DTEND;VALUE=DATE-TIME:20120927T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-207958@cern.ch DESCRIPTION:The experimental determination of the properties of the newly discovered boson at LHC is a crucial task in the near future.\nWe will sho w how on the one hand the information from the measured signal rates in al l available final states can be used to extract information on the strengt h of gauge and Yukawa couplings and how on the other hand information abou t the spin\, parity and more generally the tensor structure of the boson c ouplings can be obtained by studying the angular and mass distributions of events where the resonance decays into a pair of gauge bosons ZZ\, WW and gamgam.\nThe focus will be on the main conceptual issues garnished with s ome examples from recent ATLAS and CMS results.\n\nhttp://indico.cern.ch/c onferenceDisplay.py?confId=207958 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=207958 END:VEVENT BEGIN:VEVENT SUMMARY:MINLO: Multi-scale Improved NLO DTSTART;VALUE=DATE-TIME:20121004T090000Z DTEND;VALUE=DATE-TIME:20121004T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-201162@cern.ch DESCRIPTION:In this talk we present a prescription for the assignment of r enormalization and factorization scales in NLO calculations of processes w ith associated jet production. In practical terms the method is most simpl y understood as an NLO extension of the matrix element reweighting procedu re applied in tree level matrix element-parton shower merging algorithms.\ n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=201162 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=201162 END:VEVENT BEGIN:VEVENT SUMMARY:Summary of the CKM workshop DTSTART;VALUE=DATE-TIME:20121011T090000Z DTEND;VALUE=DATE-TIME:20121011T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-207857@cern.ch DESCRIPTION:Summary of the 7th International Workshop on the CKM Unitarity Triangle.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=207857 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=207857 END:VEVENT BEGIN:VEVENT SUMMARY:ttH at ATLAS and CMS DTSTART;VALUE=DATE-TIME:20121018T090000Z DTEND;VALUE=DATE-TIME:20121018T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-208734@cern.ch DESCRIPTION:We present searches for the Standard Model Higgs boson produce d in association with a top quark pair in 5 fb^-1 of 7 TeV $pp$ collision data from CMS and ATLAS. We look for events where the Higgs boson decays t o $b\\bar{b}$ and the top quark pair decays to either lepton plus jets ($t \\bar{t} \\rightarrow \\ell\\nu jjb\\bar{b}$) or dileptons ($t\\bar{t} \\r ightarrow \\ell \\nu \\ell \\nu b\\bar{b}$)\, where $\\ell$ is an electron or muon. We will compare and contrast in detail the methods used and resu lts obtained by the two collaborations.\n\nhttp://indico.cern.ch/conferenc eDisplay.py?confId=208734 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=208734 END:VEVENT BEGIN:VEVENT SUMMARY: Resumming jet vetoes for Higgs and Z-boson production DTSTART;VALUE=DATE-TIME:20121025T090000Z DTEND;VALUE=DATE-TIME:20121025T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-206385@cern.ch DESCRIPTION:Jet vetoes are regularly used in LHC searches to separate sign al from background\, for example in Higgs decays to WW. To draw conclusion s about signal cross sections\, we need to know the jet veto efficiency wi th some accuracy. This talk will start by examining why the determination of jet veto efficiencies has been the subject of intense discussion recent ly. It will then go on to explain the progress that has been made in apply ing QCD resummation techniques to this type of problem and show how this i mproves our predictions for Higgs studies.\n\nhttp://indico.cern.ch/confer enceDisplay.py?confId=206385 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=206385 END:VEVENT BEGIN:VEVENT SUMMARY:Minijets and multiple parton interactions in pp collisions DTSTART;VALUE=DATE-TIME:20121101T100000Z DTEND;VALUE=DATE-TIME:20121101T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-206905@cern.ch DESCRIPTION:This time we have a speaker from each\, the theoretical and th e experimental side.\n\nExperiment: ALICE has studied two-particle angular correlations in azimuthal direction induced by low energetic di-jets prod uced in proton-proton collisions. Using two-particle angular correlations with low transverse momentum thresholds\, jet properties on a statistical basis down to the lowest possible jet energies are measured.\nThe presente d results allow to optimize the parametrization of the jet\nfragmentation in theoretical models down to low energies into the\nnon-perturbative regi me. Furthermore\, the analysis can give information about the contribution from multiple parton interactions.\nResults are presented from proton-pro ton collisions at the center-of-mass energies sqrt(s) = 0.9\, 2.76\, and 7 .0 TeV recorded by the ALICE detector. Our results are compared to Pythia6 \, Pythia8\, and Phojet simulations.\n\nTheory: Current multi-parton inter action models will be discussed\, using a Sudakov formalism that emphasize s the similarities with bremsstrahlung resummation.\nParticular focus is d rawn on the current physics limitations of these models\, which can be rou ghly categorized as: multi-parton distributions\, space-time picture\, and collapse of color wavefunction.\n\nhttp://indico.cern.ch/conferenceDispla y.py?confId=206905 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=206905 END:VEVENT BEGIN:VEVENT SUMMARY:Supersymmetric contributions to Z' decays DTSTART;VALUE=DATE-TIME:20121108T100000Z DTEND;VALUE=DATE-TIME:20121108T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-209622@cern.ch DESCRIPTION:I discuss the production of heavy Z' bosons at the LHC\, as pr edicted in GUT-inspired theories\, as well as in the Sequential Standard M odel.\nSupersymmetric Z' decay modes are accounted for\, besides the Stand ard Model channels so far investigated.\nSpecial care is taken about decay s into slepton\, chargino and neutralino pairs\, leading to final states w ith leptons and missing energy. I will present the Z' branching ratios int o BSM channels for several points in the U(1)'/MSSM parameter space and es timate the impact which the inclusion of the supersymmetric channels may h ave on the Z' mass exclusion limits.\n\nhttp://indico.cern.ch/conferenceDi splay.py?confId=209622 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=209622 END:VEVENT BEGIN:VEVENT SUMMARY:Is the ~125 GeV Higgs really a problem for constrained supersymmet ry? DTSTART;VALUE=DATE-TIME:20121115T100000Z DTEND;VALUE=DATE-TIME:20121115T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-209478@cern.ch DESCRIPTION:It is often claimed that the ~125 GeV Higgs poses a challenge for unified SUSY and forces superpartner masses well beyond 1 TeV. I will investigate whether this is true primarily in the framework of the Constra ined Minimal SUSY Model (CMSSM) but also the Constrained Non-MSSM (CNMSSM) for comparison and additional options. I will apply current relevant dat a\, including that from SUSY searches\, B_s to mu+ mu- and other flavor ph ysics as well as from dark matter relic density. I will derive resulting m ass spectra for Higgs and superpartners and will discuss prospects of test ing them in Run 1 of the LHC and in dark matter searches.\n\nhttp://indico .cern.ch/conferenceDisplay.py?confId=209478 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=209478 END:VEVENT BEGIN:VEVENT SUMMARY:Search for H->tau tau at ATLAS and CMS DTSTART;VALUE=DATE-TIME:20121122T100000Z DTEND;VALUE=DATE-TIME:20121122T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-217667@cern.ch DESCRIPTION:Searches for the decay of the Higgs into tau pairs using the A TLAS and CMS detectors are presented. Both analyses use the full HCP 2012 dataset. The speakers will give an overview of the techniques used in the analyses\, and highlight the most important differences.\n\nhttp://indico. cern.ch/conferenceDisplay.py?confId=217667 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=217667 END:VEVENT BEGIN:VEVENT SUMMARY:Search for direct stop pair production in single lepton events at sqrt(s) = 8 TeV at CMS DTSTART;VALUE=DATE-TIME:20121129T100000Z DTEND;VALUE=DATE-TIME:20121129T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-218777@cern.ch DESCRIPTION:We present a search for top squark pair production in events w ith a single isolated electron or muon\, jets\, and large missing transver se energy. At least one of the jets is required to be identified as origin ating from a b-quark and events are required to have large transverse mass . The data sample used corresponds to an integrated luminosity of 9.7 fb-1 of pp collisions\, collected in 2012 by the CMS experiment at the LHC\, a t a centre-of-mass energy of 8 TeV. No significant excess in data is obser ved above the expected standard model backgrounds. The results are interpr eted in the context of models of top squark pair production where the top squarks decay either to a top quark and a neutralino or to a bottom quark and a chargino. Depending on the decay mode\, the results probe top squark s with masses in the range of 160–430 GeV.\n\nhttp://indico.cern.ch/conf erenceDisplay.py?confId=218777 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=218777 END:VEVENT BEGIN:VEVENT SUMMARY:Two dedicated SUSY searches with one lepton\, jets\, and large ETm iss in ATLAS DTSTART;VALUE=DATE-TIME:20121206T100000Z DTEND;VALUE=DATE-TIME:20121206T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-220433@cern.ch DESCRIPTION:For this cross-talk session two dedicated SUSY searches\, as p erformed in the ATLAS experiment:\n\n- An inclusive search for supersymmet ry in final states with *seven or more* jets\, missing transverse momentum and one isolated electron or muon. \n- An inclusive search for supersymme try in final states with jets\, missing transverse momentum and one *soft* isolated electron or muon (6-25 GeV). \n\nBoth searches are based on data from the full 2011 data-taking period\, \nin proton-proton collisions at a center-of-mass energy √s=7 TeV\, and corresponding to an integrated lu minosity of 4.7/fb. Observations are consistent with Standard Model expect ations\, and limits are set on a number of SUSY models\n\nhttp://indico.ce rn.ch/conferenceDisplay.py?confId=220433 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=220433 END:VEVENT BEGIN:VEVENT SUMMARY:Search for VH(bb) with ATLAS and CMS DTSTART;VALUE=DATE-TIME:20121213T100000Z DTEND;VALUE=DATE-TIME:20121213T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-219058@cern.ch DESCRIPTION:A search for the standard model Higgs boson (H) decaying to bb when produced in association with weak vector bosons (V) is reported for the following modes: W(lν)H\, Z(ll)H and Z(νν)H. The search is perform ed in a data sample corresponding to an integrated luminosity of 4.7 /fb and 12/13 /fb\, recorded by the CMS and ATLAS detectors in proton-proton c ollisions at the LHC with a center-of-mass energy of 7 TeV and 8 TeV.\n\nh ttp://indico.cern.ch/conferenceDisplay.py?confId=219058 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=219058 END:VEVENT BEGIN:VEVENT SUMMARY:Search for direct sbottom production at ATLAS DTSTART;VALUE=DATE-TIME:20130110T100000Z DTEND;VALUE=DATE-TIME:20130110T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-222208@cern.ch DESCRIPTION:This cross talk meeting discusses the search for direct pair p roduction of bottom squarks\, each decaying into a bottom quark and a neut ralino\, performed in events with large missing transverse momentum and 2 bjets in the final state using 12.8 fb-1 of pp collisions at sqrt(s)=8 TeV recorded by the ATLAS detector at the LHC.\n\nhttp://indico.cern.ch/confe renceDisplay.py?confId=222208 LOCATION:CERN TH Conference Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=222208 END:VEVENT BEGIN:VEVENT SUMMARY:Search for direct stop pair production in single lepton events at sqrt(s) = 8 TeV at ATLAS DTSTART;VALUE=DATE-TIME:20130124T100000Z DTEND;VALUE=DATE-TIME:20130124T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-222386@cern.ch DESCRIPTION:We present a search for top squark pair production in events w ith a single isolated electron or muon\, jets\, and large missing transver se energy. At least one of the jets is required to be identified as origin ating from a b-quark and events are required to have large transverse mass . The data sample used corresponds to an integrated luminosity of 14 fb-1 of pp collisions\, collected in 2012 by the ATLAS experiment at the LHC\, at a centre-of-mass energy of 8 TeV. No significant excess in data is obse rved above the expected standard model backgrounds. The results are interp reted in the context of models of top squark pair production where the top squarks decay either to a top quark and a neutralino or to a bottom quark and a chargino.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=2223 86 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=222386 END:VEVENT BEGIN:VEVENT SUMMARY:W-bosons and b's DTSTART;VALUE=DATE-TIME:20130131T100000Z DTEND;VALUE=DATE-TIME:20130131T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-222463@cern.ch DESCRIPTION:Michelangelo will review the phenomenological interest\, and t he theoretical challenges\, of the calculation of associated production of weak bosons and heavy quarks. Pierluigi wil then present a new measuremen t of the W+b-jets production cross-section in pp collisions at sqrt(s) = 7 TeV at the LHC. These results are based on data corresponding to an integ rated luminosity of 4.6 fb-1\, collected with the ATLAS detector. Cross-se ctions are presented as a function of jet multiplicity and\, for the first time\, of the transverse momentum of the leading b-jet. An overall agreem ent is observed with next-to-leading order QCD calculations and the larges t deviation is within 1.5 standard deviations.\n\nhttp://indico.cern.ch/co nferenceDisplay.py?confId=222463 LOCATION:CERN TH Common Room URL:http://indico.cern.ch/conferenceDisplay.py?confId=222463 END:VEVENT BEGIN:VEVENT SUMMARY:First evidence for Bs->mumu: theoretical overview and experimental result DTSTART;VALUE=DATE-TIME:20130207T100000Z DTEND;VALUE=DATE-TIME:20130207T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-224085@cern.ch DESCRIPTION:In the first part\, Gino Isidori will review the theoretical i nterest of Bs -> mu mu\, both within and beyond the SM\, discussing in par ticular the uncertainties affecting the SM prediction. Then Xabier Cid Vid al will explain the search for Bs -> mu mu using 2.1 fb^-1 of LHCb data\, leading to a 3.5sigma evidence. He will describe the experimental challeng es of this channel and summarize the techniques employed.\n\nhttp://indico .cern.ch/conferenceDisplay.py?confId=224085 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=224085 END:VEVENT BEGIN:VEVENT SUMMARY:Gluon fusion contributions to W+W- (+jet) production DTSTART;VALUE=DATE-TIME:20130214T100000Z DTEND;VALUE=DATE-TIME:20130214T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-235082@cern.ch DESCRIPTION:I will talk about the gg -> W+W- and gg -> W+W- g processes w hich provide a contribution to continuum WW production that is enhanced by the large gluon flux and by selection cuts employed in the Higgs boson se arch in the decay channel H->WW.\n\nhttp://indico.cern.ch/conferenceDispla y.py?confId=235082 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=235082 END:VEVENT BEGIN:VEVENT SUMMARY:Measuring the sign of the Htt coupling at the LHC DTSTART;VALUE=DATE-TIME:20130221T100000Z DTEND;VALUE=DATE-TIME:20130221T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-236343@cern.ch DESCRIPTION:The LHC sensitivity to an anomalous Higgs coupling to the top quark in the Higgs-top associated production is analyzed. Thanks to the st rong destructive interference in the t-channel for standard model coupling s\, this process can be very sensitive to both the magnitude and the sign of a nonstandard top-Higgs coupling. We analyze cross sections and the mai n irreducible backgrounds for the H -> gamma gamma decay channel. Sensiti vities to an anomalous sign for the top Yukawa coupling are found to be la rge.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=236343 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=236343 END:VEVENT BEGIN:VEVENT SUMMARY:Top B Physics at the LHC DTSTART;VALUE=DATE-TIME:20130228T100000Z DTEND;VALUE=DATE-TIME:20130228T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-226367@cern.ch DESCRIPTION:In top-pair events where at least one of the tops decays semi- leptonically\, the identification of the lepton charge allows to tag not o nly the top charge but also that of the subsequent b quark. In cases where the b also decays semi-leptonically\, the charge of the two leptons can b e used to probe CP violation in heavy flavor mixing and decays. This strat egy to measure CP violation is independent of those adopted so far in expe riments\, and can already constrain non Standard Model sources of CP viola tion with current and near future LHC data. To demonstrate the potential o f this method we construct two CP asymmetries based on same-sign and oppos ite-sign leptons and estimate their sensitivities. This proposal opens a n ew window for doing precision measurements of CP violation in b and c quar k physics via high p_T processes at ATLAS and CMS.\n\nhttp://indico.cern.c h/conferenceDisplay.py?confId=226367 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=226367 END:VEVENT BEGIN:VEVENT SUMMARY:Observation of charm mixing by LHCb DTSTART;VALUE=DATE-TIME:20130307T100000Z DTEND;VALUE=DATE-TIME:20130307T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-239372@cern.ch DESCRIPTION:We report a measurement of the time-dependent ratio of D0->K+p i- to D0->K-pi+ decay rates in D*+-tagged events using 1.0 fb^{-1} of inte grated luminosity recorded by the LHCb experiment. We measure the mixing p arameters x'2=(-0.9+-1.3)x10^{-4}\, y'=(7.2+-2.4)x10^{-3} and the ratio of doubly-Cabibbo-suppressed to Cabibbo-favored decay rates R_D=(3.52+-0.15) x10^{-3}\, where the uncertainties include statistical and systematic sour ces. The result excludes the no-mixing hypothesis with a probability corre sponding to 9.1 standard deviations and represents the first observation o f D0-D0bar oscillations from a single measurement.\n\nhttp://indico.cern.c h/conferenceDisplay.py?confId=239372 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=239372 END:VEVENT BEGIN:VEVENT SUMMARY:ATLAS and CMS results on H->Z+photon DTSTART;VALUE=DATE-TIME:20130314T100000Z DTEND;VALUE=DATE-TIME:20130314T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-240674@cern.ch DESCRIPTION:Searches for a Higgs boson decaying into a Z boson and a photo n by ATLAS and CMS are described. These use ~5 fb-1 and ~20-21 fb-1 of da ta delivered by the LHC at centre of mass energies of 7 and 8 TeV respecti vely. No significant deviations from the SM prediction are observed and up per limits on the cross section of a Higgs boson with a mass between 120 a nd 150 GeV are derived. For CMS\, the expected exclusion limits at the 95% confidence level are between 6 and 19 times the standard model cross sect ion in the mass range of 120 and 150 GeV\, and the observed limits are bet ween about 3 and 31 times the standard\nmodel cross section and for ATLAS the expected exclusion limits at 95% confidence level range between 7.3 an d 22 times the predicted Standard Model cross section. The observed exclus ion limits range between 5.4 and 37 times the Standard Model cross section .\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=240674 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=240674 END:VEVENT BEGIN:VEVENT SUMMARY:No Cross Talk (LPCC Workshop: The biggest accelerators in space an d on earth) DTSTART;VALUE=DATE-TIME:20130321T100000Z DTEND;VALUE=DATE-TIME:20130321T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-239409@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=239409 LOCATION:CERN URL:http://indico.cern.ch/conferenceDisplay.py?confId=239409 END:VEVENT BEGIN:VEVENT SUMMARY:Higgs spin results from ATLAS and CMS DTSTART;VALUE=DATE-TIME:20130328T100000Z DTEND;VALUE=DATE-TIME:20130328T110000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-240194@cern.ch DESCRIPTION:Studies are described characterizing the spin and parity of th e observed Higgs boson by ATLAS and CMS\, including ~5 fb-1 of data collec ted at sqrt(s)=7 TeV and ~20-21 fb-1 at 8 TeV. Results are presented usin g the H->ZZ->4l and H->WW->2l2nu final states in both ATLAS and CMS\, as w ell as the H->gamma gamma final state in ATLAS. The ATLAS ZZ results excl ude spin-parity hypotheses of 0- and 1+ at greater than 97% CL when compar ed to the 0+ hypothesis\, and the CMS ZZ results exclude the 2+ hypothesis with minimal couplings to vector bosons at greater than 98% CL\, and the 0-\, 1+\, and 1- hypothesis at greater than 99.8% CL with respect to the 0 + hypothesis. The ATLAS WW results exclude the 2+ hypothesis with minima l couplings at 95% CL with respect to 0+. The ATLAS di-photon results exc lude the 2+ hypothesis with minimal couplings and pure gluon fusion produc tion at greater than 95% CL. Additional spin-parity hypotheses which have been tested give of an observed separation of less than 2 sigma from the 0+ hypothesis. The spin and parity of the observed Higgs boson are consis tent with the Standard Model compared to all of the alternative models wh ich have been tested.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId =240194 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=240194 END:VEVENT BEGIN:VEVENT SUMMARY:Study of the dependence of the top-quark mass measurement on event kinematics and top-antitop mass difference in CMS DTSTART;VALUE=DATE-TIME:20130404T090000Z DTEND;VALUE=DATE-TIME:20130404T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-244638@cern.ch DESCRIPTION:The first data study is presented of possible kinematic biases in the measurement of the top-quark mass based on the invariant mass of i ts decay products. The analysis uses a sample of ttbar candidate events wi th one electron or muon and at least four jets in the final state\, collec ted by CMS in pp collisions at sqrt(s)=7 TeV at the LHC. A total of 5174 c andidate events is selected from data corresponding to an integrated lumin osity of 5.0 fb−1. For each event the mass is reconstructed from a kinem atic fit of the decay products to a ttbar hypothesis. The top-quark mass i s determined simultaneously with the jet energy scale\, constrained by the known mass of the W boson in qqbar decays\, in dependence of each kinemat ic observable. The effects observed are well reproduced by simulations bas ed on MADGRAPH\, POWHEG\, and MC@NLO with tunes including and excluding th e effects of colour reconnection. A measurement is also presented of the top-antitop mass difference. The analysis is based on sqrt(s)=8 TeV data\ , corresponding to an integrated luminosity of 18.92±0.76 fb-1\, and yiel ds a value of Δmt=−272±196 \\stat±122 \\syst\\MeV that is consistent with the standard model prediction. The accuracy of this result is signifi cantly higher than that of existing measurements.\n\nhttp://indico.cern.ch /conferenceDisplay.py?confId=244638 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=244638 END:VEVENT BEGIN:VEVENT SUMMARY:Chiral-symmetric strongly coupled sectors at the LHC DTSTART;VALUE=DATE-TIME:20130411T090000Z DTEND;VALUE=DATE-TIME:20130411T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-239413@cern.ch DESCRIPTION:Most of the traditional Technicolor-based models are known to be in a strong tension with the electroweak precision data. We show that t his serious issue is naturally cured in strongly coupled sectors with chir al-symmetric gauge interactions. We discuss possible phenomenological impl ications of such non-standard chiral-symmetric Technicolor scenario in its simplest formulation preserving the standard Higgs mechanism and elementa ry Higgs boson of the Standard Model (SM). For this purpose\, we assume th e existence of an extra technifermion sector confined under extra SU(3)_TC at the energy scales reachable at the LHC\, Lambda_TC ~ 0.1-1 TeV\, and i nteracting with the SM gauge bosons in a chiral-symmetric way. In the fram ework of this scenario\, the SM Higgs vev acquires natural interpretation in terms of the condensate of chiral technifermions in confinement. We stu dy the influence of the lowest lying composite physical states\, namely\, technipions\, technisigma and constituent technifermions\, on the Higgs se ctor properties in the SM and some possible effects on other observables a t the LHC. We found out that the Higgs signal in gamma gamma\, vector-boso n VV* and fermion\, e.g. b bbar\, decay channels can be rather sensitive t o this new sector if Lambda_TC is not very far from the electroweak scale. In particular\, the effects of technisigma-Higgs boson mixing and extra t echnifermion loops can affect the Higgs boson branching ratios being curre ntly studied at the LHC.\n\nhttp://indico.cern.ch/conferenceDisplay.py?con fId=239413 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=239413 END:VEVENT BEGIN:VEVENT SUMMARY:No Cross Talk (LHeC miniworkshop) DTSTART;VALUE=DATE-TIME:20130418T090000Z DTEND;VALUE=DATE-TIME:20130418T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-247037@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=247037 LOCATION:CERN URL:http://indico.cern.ch/conferenceDisplay.py?confId=247037 END:VEVENT BEGIN:VEVENT SUMMARY:LHCb measurement of the CKM angle gamma DTSTART;VALUE=DATE-TIME:20130425T090000Z DTEND;VALUE=DATE-TIME:20130425T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-245289@cern.ch DESCRIPTION:We present the latest results on measurements of the CKM angle gamma from LHCb.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=245 289 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=245289 END:VEVENT BEGIN:VEVENT SUMMARY:Interpretation of Constraints on Post-Fit Nuisance Uncertainties DTSTART;VALUE=DATE-TIME:20130502T090000Z DTEND;VALUE=DATE-TIME:20130502T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-249353@cern.ch DESCRIPTION:The profile likelihood fits used to maximise the sensitivity o f Higgs searches can obtain significant constraints on the input systemati c uncertainties. We discuss the legitimacy of such constraints and\, in pa rticular\, whether these constraints can\, and should\, be interpreted as measurements. The fit used in the CMS H->WW analysis will be discussed in some detail as a specific example of such a fit.\n\nhttp://indico.cern.ch/ conferenceDisplay.py?confId=249353 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=249353 END:VEVENT BEGIN:VEVENT SUMMARY:CERN Closed (No Crosstalk) DTSTART;VALUE=DATE-TIME:20130509T090000Z DTEND;VALUE=DATE-TIME:20130509T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-251621@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=251621 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=251621 END:VEVENT BEGIN:VEVENT SUMMARY:Probing top anomalous couplings at the LHC with trilepton signatur es in the single top mode DTSTART;VALUE=DATE-TIME:20130516T090000Z DTEND;VALUE=DATE-TIME:20130516T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-252029@cern.ch DESCRIPTION:We investigate trilepton final states to probe top anomalous c ouplings at the Large Hadron Collider. We focus on events originating from the associated production of a single top quark with a Z-boson\, a channe l sensitive to several flavor-changing neutral interactions of top and up/ charm quarks. In particular\, we explore a way to access simultaneously th eir anomalous couplings to Z- bosons and gluons and derive the discovery p otential of trilepton final states to such interactions with 20 inverse fb of 8 TeV collisions. We show that effective coupling strengths of O(0.1-1 ) inverse TeV can be reached. Equivalently\, branching fractions of top qu arks into lighter quarks and gluons or Z-bosons can be constrained to be b elow O(0.1-1)%.\n\nhttp://indico.cern.ch/conferenceDisplay.py?confId=25202 9 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=252029 END:VEVENT BEGIN:VEVENT SUMMARY:Determination of the X(3872) meson quantum numbers [TBC] DTSTART;VALUE=DATE-TIME:20130530T090000Z DTEND;VALUE=DATE-TIME:20130530T100000Z DTSTAMP;VALUE=DATE-TIME:20130519T142408Z UID:indico-event-246947@cern.ch DESCRIPTION:http://indico.cern.ch/conferenceDisplay.py?confId=246947 LOCATION:CERN TH common room URL:http://indico.cern.ch/conferenceDisplay.py?confId=246947 END:VEVENT END:VCALENDAR