Conveners
02 - The Standard Model and Electroweak Symmetry Breaking
- Stefan Dittmaier (Universitaet Freiburg)
02 - The Standard Model and Electroweak Symmetry Breaking
- Maarten Boonekamp (DAPNIA)
02 - The Standard Model and Electroweak Symmetry Breaking
- Dmitri Denisov (Fermi National Accelerator Laboratory (FNAL))
02 - The Standard Model and Electroweak Symmetry Breaking
- Giampiero Passarino (Torino University)
02 - The Standard Model and Electroweak Symmetry Breaking
- Sally Dawson (BNL)
02 - The Standard Model and Electroweak Symmetry Breaking
- Maarten Boonekamp (DAPNIA)
02 - The Standard Model and Electroweak Symmetry Breaking
- Stefan Dittmaier (Universitaet Freiburg)
02 - The Standard Model and Electroweak Symmetry Breaking
- Dmitri Denisov (Fermi National Accelerator Laboratory (FNAL))
Amita Raval
(DESY)
22/07/2010, 09:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
A search for events containing an isolated electron or muon and missing transverse momentum produced in e±p collisions is performed with the H1 and ZEUS detectors at HERA. The data were taken in the period 1994-2007 and correspond to an integrated luminosity of 0.98 fb-1. The total single W boson production cross section is measured as 1.06 ± 0.16 (stat.) ± 0.07 (sys.) pb, in agreement with a...
Vladimir Chekelian
(MPI fuer Physik)
22/07/2010, 09:15
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Using the deep inelastic e+p and e-p neutral and charged current scattering cross sections, including data with polarised electron beams, a combined electroweak and QCD analysis is performed. The inclusive single differential cross section d(sigma)/d(Q^2) and the reduced double differential cross section sigma tilde(x,Q^2) are presented for the charged current process, e+/- p -> nu X, in...
Terry Wyatt
(University of Manchester)
22/07/2010, 09:30
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present results of W and Z boson studies at the Tevatron including Drell-Yan cross sections measurement, W boson charge asymmetry, Z/gamma forward-backward asymmetry as well as transverse momentum distribution.
Laurent Serin
(Laboratoire de l''Accelerateur Lineaire (LAL) (IN2P3) (LAL))
22/07/2010, 09:50
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
The first measurement of the production cross-sections for W and Z bosons in proton-proton interactions at sqrt(s) = 7 TeV are reported from the ATLAS experiment. Based on its excellent capability for reconstructing both high pT electrons and muons, the electron and the muon decay modes of the W/Z bosons are compared. First results for the ratio of W/Z production and of W+/W- production will...
Prof.
Jeremiah Mans
(University of Minnesota/CMS)
22/07/2010, 10:10
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
The production of W and Z bosons has been observed in pp collisions at a center-of-mass energy of 7 TeV using data collected in the CMS experiment. W events were selected containing an isolated, energetic electron or muon. The presence of an energetic neutrino is demonstrated using the distribution of missing transverse energy (MET), which is calculated from calorimetric and tracking...
Peter Uwer
(Humboldt-Universität zu Berlin)
22/07/2010, 11:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We review recent theoretical progress concerning top-quark pair production at the Tevatron and LHC. In particular we present updated theoretical predictions taken into account the newest pdf's. Furthermore we comment on the possibility of a direct measurement of the running top-quark mass.
Breese Quinn
(University of Mississippi)
22/07/2010, 11:22
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Using events containing an isolated lepton and missing transverse energy, together with jets originating from the fragmentation of b quarks, we measure the cross section of single top quark production. Measurements of the t-channel and s-channel, matrix element Vtb and search for Flavor Changing Neutral Currents are also performed.
Fabrizio Margaroli
(Purdue)
22/07/2010, 11:45
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present precision measurements of the top quark pair production cross sections in ppbar collisions at a center of mass energy of sqrt(s)=1.96 TeV in up to 5 fb-1 of data as well as results of study of kinematics distributions of top quark pairs produced.
Prof.
Nikolaos Kidonakis
(Kennesaw State University)
22/07/2010, 12:08
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
I present the latest theoretical developments in the calculation of the cross section for top-antitop pair production and single top quark production via all main partonic channels. Higher-order corrections from resummation of soft gluons are added through NNLL accuracy. Detailed numerical results are presented for the cross section and transverse momentum distributions at the Tevatron and LHC...
Dr
Tobias Kasprzik
(KIT, Karlsruhe)
22/07/2010, 14:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
The investigation of weak bosons (W^+/W^-,Z) produced with associated hard QCD jets will be of great phenomenological interest at the LHC, since such processes constitute an important background to a large variety of BSM-physics signatures. At the same time - owing to their large production cross sections and the clear decay signatures of the vector bosons - they can be used to monitor and...
Joseph Haley
(FNAL)
22/07/2010, 14:22
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present results of the WZ production cross section measurement and W mass measurement in electron channel with the DZero detector at sqrt(s) = 1.96 TeV.
viviana cavaliere
(INFN Pisa)
22/07/2010, 14:42
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present studies of the WW and WZ production cross sections with CDF II detector from p-pbar collisions at sqrt(s) = 1.96 TeV in different final states.
Prof.
Thomas Phillips
(Duke University)
22/07/2010, 15:02
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Studies of di-boson production including production of ZZ and Zg production and updated stringent limits on triple gauge boson couplings will be presented. The ZZ sample is used also to search for gg → H → ZZ to constrain fourth generation fermion models.
Dr
David South
(DESY)
22/07/2010, 15:25
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA. Seven di- and tri-lepton events are observed in e+p collision data with a scalar sum of the lepton transverse momenta above 100 GeV, while 1.94 +- 0.17 events are expected. Such events are not observed in e-p collisions for which 1.19 +- 0.12 are predicted. A...
Mr
Julien Baglio
(Theoretical Physics Laboratory, Orsay)
22/07/2010, 16:15
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
I will present an update of the theoretical predictions for the production cross sections of the Standard Model Higgs boson at the Tevatron collider. The two main search channels will be discussed, the gluon-gluon fusion mechanism gg → H and the Higgs-strahlung process q qbar → VH with V=W/Z, including all relevant higher order QCD and electroweak corrections in perturbation theory. A thorough...
Yoshikazu Nagai
(FNAL)
22/07/2010, 16:40
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We have searched for the Standard Model Higgs boson in the low mass region using CDF detector at the Tevatron. Results with over 5 fb-1 of integrated luminosity will be presented.
Yuji Enari
(LPNHE Paris Universtat VI&VII)
22/07/2010, 17:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We have searched for the Standard Model Higgs boson in the low mass region using DZero detector at the Tevatron. Results with over 6 fb-1 of integrated luminosity will be presented.
Dr
Donatella Lucchesi
(INFN Padova)
22/07/2010, 17:20
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We have searched for the Standard Model Higgs boson in the high mass region using CDF detector at the Tevatron. Results with over 5 fb-1 of integrated luminosity will be presented.
Boris Tuchming
(CEA Saclay)
22/07/2010, 17:40
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We have searched for the Standard Model Higgs boson in the high mass region using DZero detector at the Tevatron. Results with up to 7 fb-1 of integrated luminosity will be presented.
Matthias Neubert
(Mainz University)
23/07/2010, 09:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Precision Predictions for Top-Quark Pair Production at Hadron Colliders
Content
Precision predictions for phenomenologically interesting observables such as the t-tbar invariant mass distribution and forward-backward asymmetry in top-quark pair production at hadron colliders require control over the differential cross section in perturbative QCD. We improve existing calculations of the...
Mr
Viatcheslav Sharyy
(CEA-Saclay)
23/07/2010, 09:20
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Studies of top quark properties, including spin correlations, W boson helicity, forward backward asymmetry, Wtb coupling as well as search for anomalous top quark couplings with the D0 detector will be presented.
Andrew Eppig
(University of Michigan)
23/07/2010, 09:45
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Studies of top quark properties, including spin correlations, W polarization and forward backward asymmetry at the Tevatron's CDF detector will be presented as well as results of searches for light Higgs boson in top quark decays.
Dr
Pedro Ruiz-Femenia
(RWTH Aachen University)
23/07/2010, 10:10
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We analyse subleading electroweak effects in the top anti-top resonance production region in e+ e- collisions which arise due to the decay of the top and anti-top quarks into the W+ W- b bbar final state. These are NLO corrections adopting the non-relativistic power counting v ~ alpha_s ~ sqrt(alpha_EW). In contrast to the QCD corrections which have been calculated (almost) up to NNNLO, the...
Alexander Grohsjean
(Ludwig-Maximilians-Univ. Muenchen)
23/07/2010, 11:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We report a set of measurements of the top quark mass obtained from proton-antiproton collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron with the DZero detector using different decay modes and analysis methods. We present measurements of the top quark width, and mass difference between the top and anti-top quark as well.
Hyunsu Lee
(University of Chicago)
23/07/2010, 11:25
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We report a measurement of the top quark mass obtained from proton-antiproton collisions at a center-of-mass energy of 1.96 TeV at the Fermilab Tevatron using the CDF II detector using different decay modes and analysis methods. We present measurements of the top quark width, and mass difference between the top and anti-top quark in the lepton+jets channel as well.
Tim Christiansen
(CERN)
23/07/2010, 11:50
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
The top quark is a fundamental building block of the standard model. Due to the large cross section, top-antitop pairs will be copiously produced in high energy proton-proton collisions at the Large Hadron Collider (LHC). We present the first results of a selection of top-quark pair production events in the dilepton channel, where both W-bosons from the top quarks decay leptonically into...
Arnaud Lucotte
(LPSC Laboratoire de Physique Subatomique et de Cosmologie (LPSC))
23/07/2010, 12:10
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
First results from the ATLAS experiment at the LHC at center of mass energy of 7 TeV on top quark studies will be presented. In addition prospects on top quark studies at ATLAS including the top quark mass, top quark decay properties, spin correlations and anomalous couplings, rare decays and single top quark production will be discussed.
Prof.
Giampiero Passarino
(Torino University)
23/07/2010, 14:00
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Higgs production cross sections, including electroweak NLO corrections will be discussed
Krisztian Peters
(FNAL)
23/07/2010, 14:25
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present a search for Higgs bosons decaying to the di-photon final state using 5 fb-1 of data at a center-of-mass energy of sqrt(s)=1.96~TeV at the Fermilab Tevatron collider. Whilst the branching ratio to the di-photon final state is small in the Standard Model, this channel contributes appreciably to the overall Higgs sensitivity at Tevatron. In parallel, the limit is re-interpreted in...
Pierluigi Totaro
(INFN-Sezione di Trieste)
23/07/2010, 14:45
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present a search for a Standard Model Higgs boson in events with a final state containing two taus and two jets at a center-of-mass energy of sqrt(s)=1.96 TeV at the Fermilab Tevatron collider. The final states are sensitive to a combination of associated production of a W/Z boson with a Higgs boson, vector boson fusion and gluon-gluon fusion production processes. Inclusion of the data set...
Abid Patwa
(Brookhaven National Laboratory (BNL))
23/07/2010, 15:05
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present a search for non-Standard Model Higgs bosons at a center-of-mass energy of sqrt(s)=1.96 TeV using up to 6 fb-1 of Tevatron data. Searches for charged and neutral Higgs bosons predicted in MSSM and NMSSM models will be discussed.
Prof.
Sally Dawson
(BNL)
23/07/2010, 15:25
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We present the one-loop electroweak effects for the process of semi-inclusive b-Higgs production at the LHC. The electroweak effects are significant for heavy Higgs bosons and can be obtained using an effective theory approach. We also discuss new results for the merging of the 4 flavor number parton distribution scheme and the 5-flavor number parton distribution scheme for the calculation...
Martin Goebel
(DESY - University of Hamburg)
23/07/2010, 16:15
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
Gfitter results from the global Standard Model (SM) fit to electroweak precision data, including newest Tevatron measurements, are reviewed and discussed. Constraints on the Higgs and top-quark masses, as well as on alpha_s(M_Z), are studied in some detail, and outlooks to the LHC and ILC eras are presented. Information from the electroweak fit on loop contributions from beyond-SM models is...
Michael Mulhearn
(University of Virginia)
23/07/2010, 16:35
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
A combination of searches for Standard Model and beyond Standard Model Higgs boson production at DZero using a data sample up to 7 fb-1 of integrated luminosity is performed. For Standard Model searches we determine combined upper 95% C.L. limits on the ratio of the Higgs boson cross section times the branching ratio to its Standard Model prediction for Higgs boson masses between 100 and 200 GeV/c2.
Karolos Potamianos
(Purdue University)
23/07/2010, 16:57
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
A combination of searches for Standard Model and beyond Standard Model Higgs boson production at CDF using a data sample up to 6.0 fb-1 of integrated luminosity is performed. For Standard Model searches we determine combined upper 95% C.L. limits on the ratio of the Higgs boson cross section times the branching ratio to its Standard Model prediction for Higgs boson masses between 100 and 200 GeV/c2.
Tatsuya Masubuchi
(University of Tokyo)
23/07/2010, 17:19
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
The search for Higgs bosons at the Large Hadron Collider (LHC) is based on the analysis of independent final states, such as photon, tau, W and Z pairs. The Higgs discovery potential of ATLAS for each independent final state, as well as for combined channels, is reviewed and discussed. Results are presented for an integrated luminosity for 1/fb at 7 TeV center of mass energy at the LHC....
Dr
Marat Gataullin
(Caltech)
23/07/2010, 17:39
02 - The Standard Model and Electroweak Symmetry Breaking
Parallel Session Talk
We overview the prospects for Higgs boson searches with a data sample of 1 fb-1 to be collected in pp-collisions at 7 TeV. We present sensitivity projections for SM-like decay modes H→WW→2l2v, H→ZZ→4l, H→ γγ (including their combination), the MSSM-like signature pp→bbΦ→bb(ττ), and, also discuss a few other possible models/searches. Preliminary results of data analyses validating a number of...
