LHC on the March

Europe/Moscow
Conference Hall, Theoretical Division (IHEP, Protvino)

Conference Hall, Theoretical Division

IHEP, Protvino

Nikolai Tyurin (Institute for High Energy Physics (RU))
Description

General Information

State Research Center of Russian Federation - Institute for High Energy Physics is planning to organize the International Workshop “ LHC on the March” 20–22 November, 2012, in Protvino, Moscow region, Russia. The main goal of the workshop is a thorough discussion of the present experimental results from the LHC collaborations ALICE, ATLAS, CMS, LHCb and their theoretical interpretations.

The following topics will be discussed

· Searches for Higgs
· Higgs Phenomenology and lessons from LHC results
· Status and plans of LHC machine

· LEP3 Higgs factory
· Status and performance of the experiments
· Electroweak phenomena
· Searches for Phenomena beyond the Standard Model
· QCD studies
· B-physics
· Top quark production and properties
· Heavy quarkonia
· Heavy Ions Collisions


CONFERENCE FEE

- 5000 rub.
for applications before 20/09/2012
- 8000 rub. for applications after 20/09/2012
Includes visa payments, transportation from/to the airport, coffee breaks,
conference dinner, welcome and farewell parties, complete set for the participant.
Conference fee should be paid in cash at the conference.
You can change USD or Euro to russian rubles in the bank near the hotel,
don't do that at the airport (the rate is 10%-25% worse)

 

IMPORTANT DATES:

August 6, 2012 - start of the registration procedure and abstract submission
September 20, 2012 1st registration deadline for those who needs Russian visa change of the registration fee (from 5000 rub. to 8000 rub.)
October 25, 2012 2nd registration deadline for those who needs Russian visa
November 7, 2012 - registration deadline for domestic participants
November 7, 2012 - end of the registration procedure and abstract submission, start of the presentations upload

Since visa formalities may take long time, please, try to send us the information as early as possible (better before October 1st).
Please, provide us the title of your talk (may be preliminary) when you register at the conference page
and try to upload your presentation by web interface (will be opened after November 7, 2012) or send it by e-mail to ihep-lhc@ihep.ru before November 19, 2012.

Please inform organizers about any changes.

Participation

About 50 scientists from Russia and other countries are expected to participate. The sessions will be held in the Conference Hall of the Theory Division Building. The reports will be given in the form of plenary talks (20-40 min).

The Proceedings of the Workshop will be published by the IHEP publication office and in a scientific journal.

Accommodation

The Workshop will be held in Protvino, a small town 100 km to the south of Moscow. The town is situated nearby the State Research Center of RussiaIHEP (Serpukhov 70 GeV accelerator) in a pine forest and near the Protva river.

The participants will be accommodated in theProtvahotel in single or double rooms. Price for one night is about $70. The total living expenses (including breakfast, lunch, and dinner) will be about $20 a day. The participants can have their meal in the restaurant and snack-bar of the hotel.

Transportation

All the participants will be transported from the Sheremetievo or Domodedovo airports to Protvino by the IHEP transport. In case of multiple choices we recommend to choose Star Alliance members flying to Domodedovo airport which is much closer to Protvino. The information about flights and the date of arrival should be communicated to the Scientific Secretary of the Organizing Committee a few days in advance.

 


 
Participants
  • Alexander Artamonov
  • Alexander Mamonov
  • Alexandre SHABETAI
  • Anatoly Petrukhin
  • Andrew Ivanov
  • Bora Akgun
  • Boris Arbuzov
  • Christian Schmitt
  • Christoph Mayer
  • Daria Savrina
  • Dmitry Blau
  • Edward Boos
  • Evgeny Kryshen
  • Federica Primavera
  • Geraldine Conti
  • Hongbo Zhu
  • Ivan Polyakov
  • Jianguo Bian
  • Lidia Smirnova
  • Luigi Guiducci
  • Matteo Marone
  • Michael Koratzinos
  • Mikhail Kirsanov
  • Mikhail Vysotsky
  • Mirko Pojer
  • Nathan Edward Triplett
  • Oleg Solovyanov
  • Olga Kochebina
  • Raphaelle, Marie BAILHACHE
  • Rishat Sultanov
  • Saverio D'Auria
  • Sergey Ivanov
  • Simone Pagan Griso
  • Valery Telnov
  • Victor Novikov
  • Vladimir Nikolaenko
  • Wolfgang Waltenberger
  • Yiming Li
Contacts
    • Morning Session: Detector status and upgrade plans Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 1
        Opening address
        Speaker: Nikolai Tyurin (Institute for High Energy Physics (RU))
      • 2
        Status of the CMS detector and upgrade plans
        The CMS experiment at the LHC collected 5.55 /fb of proton proton collisions data at a center of mass energy of 7 TeV in 2011 and almost 20 /fb at 8 TeV energy in 2012, while the LHC run is still ongoing. The CMS detector has shown excellent performance and very good data taking efficiency. The operational experience will be discussed focusing on relevant technical aspects. The performance of CMS subdetectors will be illustrated. Emphasis will be put on the solutions adopted during 2012 run to adapt to the increase in luminosity of the LHC while mantaining the high quality of the physics objects delivered to offline analysis. New challenges, dictated by future LHC luminosity scenarios, are ahead of CMS: an overview of the detector upgrade plans, both on medium and long term range, will be given.
        Speaker: Luigi Guiducci (Universita e INFN Bologna (IT))
        Slides
      • 3
        ALICE status and plans
        The ALICE experiment has been running successfully since 2010 and made an impressive progress towards understanding of hot and dense QCD matter produced in heavy-ion collisions at LHC energies. Recent results on identified particle spectra, azimuthal anisotropy, particle correlations, heavy flavour and quarkonia production in PbPb collisions at sqrt(sNN) = 2.76 TeV will be presented. Future physics challenges and the ALICE upgrade perspectives will be briefly reviewed at the end.
        Speaker: Evgeny Kryshen (B.P. Konstantinov Petersburg Nuclear Physics Institute - PNPI ()
        Slides
      • 4
        Development of detector control system software simulator for electromagnetic calorimeter PHOS
        We report on the development of a software simulator of the detector control system for the ALICE Photon Spectrometer (PHOS). PHOS is an electromagnetic calorimeter, part of the ALICE experiment installed at the CERN Large Hadron Collider (LHC). The simulator was design and developed based on the experience acquired during the first years of operation of the detector, from 2009 to 2012. It simulates the behavior of all detector subsystems and auxiliary services: cooling and thermal stabilization of the crystal matrix, low-and high-voltage power supplies, LED monitoring system, gas supply, water cooling and front-end electronics. The simulator is written in ETM PVSS II SCADA environment C-like programming language CONTROL based Microsoft Windows XP platform. It allows to autonomously develop alarm and software protections, remotely train the ALICE shifters and to fine-tune, commission and configure the software updates before deployment in the experiment.
        Speaker: Alexander Mamonov (Russian Federal Nuclear Center (RU))
        Slides
    • 10:50
      Coffee break Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Morning Session: Detector status and upgrade plans Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 5
        LHCb status and overview
        The LHCb experiment is purposed to study the properties of the beauty and charmed particles decays. In such decays the search for the physics beyond the Standard Model is performed in an indirect way, as one expects contribution from non-standard particles and forces to become visible through the branching fractions of the rare decays, CP-asymmetries and many other observables. The LHCb detector provides a high efficiency for detection and reconstruction of the decays of the beauty particles produced in the proton-proton collisions. Exploiting the power of the LHC machine during the past two years LHCb has recorded ~3fb^-1 of data, which allowed to observe a number of new decays and increase the accuracy in measuring the effects, which have already been seen before. As the long technical stop is upcoming, an upgrade of both detector subsystems and trigger is planned for the LHCb, before the LHC will start working at its nominal energy and bunch crossing frequency. The talk will include an overview of the LHCb detector, its current status and performance. The main highlights of the recent physics results and the plans for the upgrade will also be shown.
        Speaker: Daria Savrina (M.V. Lomonosov Moscow State University (RU))
        Slides
      • 6
        Status of the ATLAS detector
        After the successful data taking year of 2011 at 7 TeV, since March of 2012 the ATLAS experiment at LHC is collecting data with colliding proton beams at the previously unparalleled centre of mass energy of 8 TeV. A challenging task was to cope with the augmented event rates due to the increased luminosity delivered by the collider and large pileup conditions. A status of the ATLAS detector is presented as of November 2012. Individual sub-detector systems and their operation status will be presented in this talk, together with the main physics results that demonstrate the performance of the detector.
        Speaker: Oleg Solovyanov (Institute for High Energy Physics (RU))
        Slides
      • 7
        ATLAS Upgrades Towards the High Luminosity LHC
        After successful LHC operation at the center-of-mass energy of 7 TeV in 2011, the LHC is scheduled to deliver even more data in 2012 at 8 TeV. Meanwhile, plans are actively advancing for a series of upgrades, culminating roughly 10 years from now in the high luminosity LHC (HL-LHC) project, delivering of order five times the LHC nominal instantaneous luminosity along with luminosity levelling. The final goal is to extend the data set from about 300fb-1 expected for LHC running to 3000 fb-1 by around 2030. Current planning in ATLAS also has significant upgrades to the detector during the consolidation of the LHC to reach full LHC energy and further upgrades to accommodate running already beyond nominal luminosity this decade. The challenge of coping with HL-LHC instantaneous and integrated luminosity, along with the associated radiation levels, requires further major changes to the ATLAS detector. The designs are developing rapidly for an all-new inner-tracker, significant upgrades in the calorimeter and muon systems, as well as improved triggers and data acquisition. This presentation summarises the various improvements to the ATLAS detector required to cope with the anticipated evolution of the LHC instantaneous luminosity during this decade and the next.
        Speaker: Hongbo Zhu (Deutsches Elektronen-Synchrotron (DE))
        Slides
    • 13:00
      Lunch Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Evening Session: B-physics Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 8
        B-physics at ATLAS
        Status of B-physics studies in ATLAS is reviewed, starting from Onia results based on dimuon channel. J/psi->mu+mu- decay also serves as a basis for identification of B-mesons and Lambda_b baryons. Results on cross section and lifetime measurements, CP-violation parameters and rare decay searches are also presented.
        Speaker: Vladimir Nikolaenko (Institute for High Energy Physics (RU))
        Slides
      • 9
        CMS results on B-Physics
        The recent results of the CMS experiment in the field of b-quark production, B hadron spectroscopy and decays are reviewed. The B_{s} lifetime difference is measured and the first observation of a new baryon with beauty, the Xi(b)*0 is presented.
        Speaker: Bora Akgun (Rice University (US))
        Slides
      • 10
        ALICE results on heavy-flavour production at the LHC
        In ultra-relativistic heavy-ion collisions, heavy quarks, i.e. charm and beauty, are of particular interest, since they are produced in the early stage of the reaction and coexist with the surrounding medium. Therefore the measurement of open heavy-flavour production in Pb-Pb collisions at the LHC gives access to the mechanisms of heavy-quark transport and energy loss in hot and dense QCD matter. The ALICE apparatus allows us to measure heavy-flavour particles down to low transverse momentum, using hadronic and electronic final states at central rapidity and muonic final states at forward rapidity. We first present results in pp collisions at centre-of-mass energies of 2.76 and 7 TeV. These measurements provide information on heavy-quark production at LHC energies and constitute the reference for heavy-ion studies. We focus then on the observation of the suppression and azimuthal anisotropy of heavy-flavour production in Pb-Pb collisions at 2.76 TeV.
        Speaker: Raphaelle Bailhache (Johann-Wolfgang-Goethe Univ. (DE))
        Slides
      • 11
        Charm and Charmonia production at LHCb
        Studies of charm and charmonia production provide important tests of QCD. During 2010 and 2011 the LHCb experiment collected a dataset corresponding to about 1/fb of integrated luminosity in proton-proton collisions at sqrt(s) = 7 TeV. We present measurements of the production of J/psi, psi(2S), chi_c1 and chi_c2 as well as their cross-section ratio, and a cross-section ratio of chi_c to J/psi. We also present measurements of double charm production which is the first observation at hadronic collisions. The results are compared to theoretical predictions.
        Speaker: Alexander Artamonov (Institute for High Energy Physics (RU))
        Slides
    • 16:00
      Coffee break Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Evening Session: B-physics Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 12
        Charmed penguin versus BAU
        Since most probably Standard Model cannot explain large value of CP asymmetries recently observed in D-meson decays we propose the fourth quark-lepton generation explanation of it. As a byproduct weakly mixed leptons of the fourth generation enable to save the baryon number of the Universe from erasure by sphalerons.
        Speaker: Dr Mikhail Vysotsky (ITEP)
        Slides
      • 13
        Rare decays at LHCb
        In this presentation, rare decays of B and D mesons are discussed. Such decays are sensitive to the presence of physics beyond the Standard Model as they are mediated by loop diagrams. New physics can be probed by measuring unexpectedly high branching ratios, CP, isospin and forward backward asymmetries and other angular observables. The last results of LHCb experiment in this field are presented.
        Speaker: Olga Kochebina (Universite de Paris-Sud 11 (FR))
        Slides
      • 14
        CMS results on Quarkonium production
        Using large data samples of di-muon events, CMS has performed detailed measurements in the field of quarkonium production. Differential cross-sections of (prompt) J/psi, psi(2S) and Y(nS) states in pT and rapidity will be presented, as well as studies of P-wave charmonia (chi_c), using the decay mode J/psi + gamma where the photon converts in an e+e- pair inside the detector. All our measurements will be compared to several theoretical predictions, including NLO nonrelativistic QCD. We, will in particular, present for the first time results on double-J/psi production, as well very recent results on two exotic quarkonium states.
        Speaker: Dr Jianguo Bian (Institute of High Energy Physics, Beijing, China)
        Slides
      • 15
        Bottomonia and Bc Production at LHCb
        With large production cross-section and its unique rapidity coverage, the LHCb detector brings opportunity for $b\bar{b}$ bottomonia studies, hence tests for QCD models. We present here the results of $\Upsilon$ and $\chi_b(1P)$ production at $\sqrt{s}$ = 7 TeV. Also discussed here are studies on the $B_c$ meson, including its production and mass measurement using $B_c^{+} \rightarrow J/\psi \pi^{+}$ channel, and the decay of $B_c^{+} \rightarrow J/\psi \pi^{+}\pi^{+}\pi^{-}$, both with data obtained from 2011 running of LHC.
        Speaker: Yiming Li (Tsinghua University (CN))
        Slides
      • 16
        B decays to charmonia at LHCb
        The LHCb experiment is a forward arm spectrometer designed to make high precision measurements of b hadron decays at the LHC. During 2011 a total luminosity of 1.0 fb-1 of data was collected at sqrt(s)=7 TeV. LHCb's efficient dimuon trigger allows to perform studies of B mesons decaying to charmonia with high precision. We will present results on B decays into J/psi and light hadrons, together with measurements of the relative branching ratios of exclusive b decays to final states involving J/psi and psi(2S) mesons.
        Speaker: Ivan Polyakov (ITEP Institute for Theoretical and Experimental Physics (RU))
        Slides
    • 19:00
      Welcome drink Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Morning Session: LEP3 Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 17
        Limitation on the luminosity of e+e- storage rings due to beamstrahlung.
        Particle loss due to the emission of single energetic beamstrahlung photons is shown to impose a fundamental limit on storage ring luminosities at energies more than 2E~140 GeV for head-on collisions and 2E~40 GeV for crab-waist collisions. Above these thresholds the suppression factor due to beamstrahlung scales as 1/E^4/3 and for a fixed power of synchrotron radiation L \propto R/E^13/3. For 2E>150 GeV both collisions schemes have a similar limits on the luminosity. The attainable luminosities at the Higgs factory energy 2E=240 GeV at storage rings and linear colliders (LC) are comparable and LC is preferable for higher energy.
        Speaker: Prof. Valery Telnov (Budker INP, Novosibirsk, Russia)
        Slides
      • 18
        LEP3: a possible low-cost high-luminosity Higgs factory
        The discovery of X(125) at CERN, which looks increasingly likely to be the long-awaited Higgs boson, opens the debate of which type of machine would serve best as a Higgs factory. LEP3 is a low-cost, high-luminosity circular e+e- collider operating near the Higgs production optimal centre-of-mass energy of 240GeV. We will briefly discuss what accuracies on Higgs observables are necessary to probe physics beyond the standard model and what is achievable at the LHC. We will argue that a future e+e- collider can provide much needed supplementary information and we will briefly compare circular and linear e+e- machines. In the few months following the discovery of the Higgs boson, an impressive amount of work has been done to assess the feasibility of LEP3, with very encouraging results. The most obvious choice for the location of such a machine is in the LHC tunnel, but other possibilities, notably the utilization of the UNK tunnel, will also be briefly discussed.
        Speaker: m Koratzinos (University of Geneva)
        Slides
      • 19
        Higgs factories
        Various approaches to Higgs factories are discussed: LC, storage ring, muon collider, photon collider, etc, incl. news from the HF2012, FNAL, Nov. 14-16, 2012.
        Speaker: Prof. Valery Telnov (Budker INP, Novosibirsk, Russia)
        Slides
    • 10:30
      Coffee break Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Evening Session: Heavy Ions Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 20
        J/Psi photo-production in ultra-peripheral Pb-Pb collisions
        The strong electro-magnetic fields produced by ultra-relativistic heavy ions allow for the study of gamma-gamma and gamma-nucleus processes at the CERN Large Hadron Collider. Here, we report first results obtained by ALICE on the J/psi photo-production cross section in Pb-Pb collisions at sqrt(sNN) = 2.76 TeV, both at forward rapidities (-3.6 < y < -2.6) in the mu+mu- channel, and at central rapidities (-0.9 < y < 0.9) in e+e- and mu+mu- channels. The obtained cross sections are compared with predictions from several models. In addition, we have measured the cross section of the process gamma-gamma -> e+e- in central rapidity and compared it to the STARLIGHT Monte-Carlo prediction.
        Speaker: Christoph Mayer (Polish Academy of Sciences (PL))
        Slides
      • 21
        Neutral meson production in pp and Pb-Pb collisions at the LHC measured with ALICE
        Identified hadron spectra are considered to be sensitive to transport properties of strongly interacting matter produced in high-energy nucleus-nucleus collisions. We present measurements of $\pi^0$ and $\eta$ mesons at mid-rapidity in a wide transverse momentum range in pp and Pb-Pb collisions at LHC energies measured with the ALICE detector. The mesons are reconstructed via their two-photon decays by two complementary methods, using the electromagnetic calorimeters and the central tracking system for photons converted to electron-positron pairs on the material of the inner ALICE barrel tracking detectors. Comparison of the ALICE results on neutral mesons with those of lower-energy experiments is discussed.
        Speaker: Dmitry Blau (National Research Centre Kurchatov Institute (RU))
        Slides
      • 22
        Review of recent results on jet physics in Heavy Ion from LHC
        A cross-over between ordinary nuclear matter and a state of deconfined quarks and gluons, the Quark Gluon Plasma (QGP) is predicted by lattice QCD calculations. Experimentally, ultra-relativistic heavy ion collisions are used to study such a hot and dense medium. Jets are sensitive to early stage of heavy ion collisions. This property allows to probe the QGP. Their strong interaction with the medium leads to a modification of their structure and to a re-distribution of their energy. Experimentally, this can be seen as a marked reduction of their measured energy in a given reconstruction cone. Their fragmentation pattern is also modified. This phenomenon is called "jet-quenching". Many experimental observations such as the suppression of back-to-back azimuthal correlations, the suppression of inclusive hadrons - or even jet - spectra or measurements of modified jet fragmentation functions, can all be used in order to learn about in-medium energy loss. Comparing those to theoretical calculations provide hints about the density of the QGP. Moreover, measurements of jets in proton-proton collisions provide a baseline needed for heavy ion studies . They are also useful to test pQCD. An overview of recent results on jet physics from LHC experiments (ALICE, CMS ans ATLAS) will be presented. We will discuss and compare them to some RHIC results (from STAR and PHENIX).
        Speaker: Alexandre Shabetai (Laboratoire de Physique Subatomique et des Technologies Associe)
        Transparents
      • 23
        Jet measurements in proton-proton and PbPb collisions with the ALICE experiment at LHC
        Jets are an important tool in testing QCD and probing the hot and dense nuclear matter created in high energy heavy-ion collisions. They can be used to study hard scatterings, fragmentation and hadronisation and how this processes differ from baseline vacuum measurements in case of presence of a partonic medium. Vacuum measurements are obtained from proton-proton collisions. Data taken by the ALICE detector system in proton-proton collisions at sqrt(s) = 7 TeV and in heavy ion collisions at sqrt(s) = 2.76 have been analysed and results for jet pT spectra, R_AA, cross section and inclusive structure are presented. The procedures used to reconstruct jets and to extract them from a background will be discussed.
        Speaker: Rishat Sultanov (ITEP Institute for Theoretical and Experimental Physics (RU))
        Slides
    • 19:00
      Conference dinner Club of scientists

      Club of scientists

    • Morning Session: Accelerator status Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 24
        Status of U70
        The report overviews present status of the Accelerator Complex U70 of IHEP-Protvino comprising four machines (2 linear accelerators and 2 synchrotrons). Particular emphasis is put on the recent upgrades aimed at improving quality of proton beam and implementing program to accelerate light ions (carbon).
        Speaker: Dr Sergey Ivanov (Institute for High Energy Physics (IHEP))
        Slides
      • 25
        LHC status & plans (including upgrade)
        In three years of operation, the LHC has delivered a total of more than 25 fb-1 of integrated luminosity, providing collisions at 7 and 8 TeV c.o.m. The reasons for this tremendous success will be underlined. At the beginning of next year, the machine will be stopped for about 20 months, at the end of which the energy, and therefore the potential for discoveries, will be increased. The details of this "upgrade" will be shown, as well as the strategy for future performance improvements.
        Speaker: Dr Mirko Pojer (CERN)
        Slides
      • 26
        Consequences for LHC from cosmic ray experiments
        In cosmic ray experiments, the particles with energies (10^15 – 10^19) eV are investigated. This interval corresponds to (1.4 – 140) TeV in the center-of-mass system, which is 10 times higher than maximum LHC energy. Many unusual results in cosmic ray experiments in this energy interval were observed, which cannot be explained in frame of existing theoretical models and approaches. For their explanation from a single point of view, the production of new massive state of matter (with mass ~ 1 TeV) with large orbital momentum is required. The most suitable version is the production of QGP blobs, the decay of which into light quarks is suppressed by large orbital momentum. Possible decay into heavy-quarks (top-antitop) changes the picture of hadron interaction. In this talk, possible approaches to investigations of new QGP state in cosmic rays and LHC experiments are considered, taking into account that threshold energy is considerably lower for nuclei-nuclei interactions and corresponds to LHC energies. For pp-interactions, energy of 14 TeV is insufficient for production of a new state of matter.
        Speaker: Prof. Anatoly Petrukhin (Moscow State Engineering Physics Institute (RU))
        Slides
    • 10:30
      Coffee break Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Morning Session: Beyond the Standard Model Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 27
        CMS results on SUSY/Beyond SM
        To this date CMS has performed a wide range of searches for physics beyond the standard model. The program comprises both broad, inclusive searches as well as exclusive, specialised approaches. In this overview talk, the results with proton-proton collision data both at 7 and 8 TeV will be summarized, with a focus on presenting some highlights of the CMS search program.
        Speaker: Dr Wolfgang Waltenberger (HEPHY Vienna)
        Slides
      • 28
        Search for a heavy neutrino and right-handed W of the left-right symmetric model in pp collisions
        We describe the search for signals from the production of right-handed W bosons and heavy neutrinos $N_l (l = e, \mu)$, that arise naturally in the left-right symmetric extension to the standard model, using 5 1/fb of collision data collected by the CMS Experiment at the LHC in 2011 at $\sqrt{s}=7$ TeV and 3.6 1/fb of 2012 collision data at $\sqrt{s}=8$ TeV. No excess over expectations from standard model processes is observed. For models with exact left-right symmetry, and assuming either $N_e$ or $N_{\mu}$ is the only right-handed neutrino accessible at LHC energies, we exclude the region in the two-dimensional parameter $(M_{W_R}, M_N)$ space that extends beyond $M_{W_R}$ = 2.5 TeV.
        Speaker: Mikhail Kirsanov (Russian Academy of Sciences (RU))
        Slides
      • 29
        SUSY and Beyond SM Searches at ATLAS
        With the upgrade of LHC center of mass energy to 8 TeV along with high intensity beams, many regions of beyond standard model physics are able to be probed for the first time. This talk will present the current status of the ATLAS SUSY and exotic searches with a focus on the most recent 8 TeV results.
        Speaker: Nathan Edward Triplett (Brookhaven National Laboratory (US))
        Slides
      • 30
        The LHC state at 125.7 GeV as an evidence for non-perturbative electro-weak effects
        The recently discovered resonance at $125.7\, GeV$ in invariant mass distribution of $\gamma\, \gamma$ and of $l^+\,l^+\,l^-\,l^-$ may be tentatively interpreted as a scalar bound state $X$ consisting of two $W$. In the present note we consider this option and show that this interpretation agrees existing experimental data including the last LHC discovery and the $b \bar b$ bump reported by CDF and D0 collaborations at TEVATRON. The application of this scheme gives satisfactory agreement with existing data without any adjusting parameter but the bound state mass $125.5\,GeV$. There are pronounced distinctions of the $W$-hadron option from the SM Higgs case in decay mode $\,X \to \gamma\, l^+ l^-$ and in the cross-section of process $p + p \to \gamma\, X$.
        Speaker: Prof. Boris Arbuzov (Moscow State University, Skobeltsyn Institute of Nuclear Physics)
        Slides
    • 13:00
      Lunch Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Evening Session: The Standard Model Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 31
        Top physics at ATLAS
        This talk will be a review of the recent Atlas experimental results on top-quark Physics.
        Speaker: Saverio D'Auria (University of Glasgow)
        Slides
      • 32
        CMS results on top physics
        We present CMS results on top quark production and properties measurements
        Speaker: Andrew Ivanov (Kansas State University (US))
        Slides
      • 33
        Electroweak Physics at ATLAS
        The measurement of WW, WZ, ZZ, W$\gamma$ and Z$\gamma$ production cross-sections allow for precision tests of the electroweak (EW) dynamics of the Standard Model (SM). Differences between measured and predicted SM cross-sections could prove evidence for new phenomena. The diboson processes are also an important source of background to Higgs production decaying into vector boson pairs, such as $H\rightarrowWW$ and $H\rightarrowZZ$, and also to other new physics processes. It is therefore very important to have precise measurements of their production cross-sections. The ATLAS and CMS collaborations have measured those cross-sections at 7 and 8 TeV. I will review the latest measurements of the ATLAS collaboration, as well as the limits set on the anomalous WW$\gamma$, ZZ$\gamma$, Z$\gamma\gamma$ and ZZZ triple gauge-boson couplings.
        Speaker: Geraldine Conti (Harvard University (US))
        Slides
      • 34
        Jet production in association with vector bosons at CMS
        The associated production of jets and vector bosons allows for stringent tests of perturbative QCD calculations and is sensitive to the possible presence of new physics beyond the Standard Model. Measurements of jet production rates in association with W, Z or photons, in proton-proton collisions at a 7 TeV center-of-mass energy is presented, using data collected with the CMS detector. In particular, we compare data to the theory predictions on jet rates, dijet invariant mass, angular correlations and event shapes distributions.
        Speaker: Matteo Marone (University of Trieste and INFN)
        Slides
    • 16:00
      Coffee break Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

    • Evening Session: Higgs Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino

      • 35
        Higgs searches at ATLAS
        During July 2012, the ATLAS and CMS collaboration announced together the observation of a new boson in the Higgs searches, with a mass around 126 GeV. Since then, the Large Hadron Collider has been running steadly, providing proton-proton collisions at sqrt(s)=8 TeV; both experiments have now more than doubled the amount of data available since July. I will review the latest results of the ATLAS collaboration on Higgs searches, both in the Satandard-Model framework and beyond. I will present the available updated results with more analyzed data and refined analysis techniques with respect to summer 2012; the first results on 2012 data of Higgs searches to b-quarks and tau leptons final states will be presented as well.
        Speaker: Simone Pagan Griso (Lawrence Berkeley National Lab. (US))
        Slides
      • 36
        Combined Higgs result from ATLAS
        On July 4th both ATLAS and CMS announced the observation of a new particle in the search for the Higgs boson. The required sensitivity above 5 sigma could only be achieved by combining different search channels and by analysing both the data from 2011 and 2012. Several production and decay modes can shed light on the properties of this new particle, but the full picture can only be obtained by combining all the available information. This talk will provide an overview over the complementary measurements used as input for the latest combination at ATLAS and its results both in terms of signal strength and properties.
        Speaker: Christian Schmitt (Johannes-Gutenberg-Universitaet Mainz (DE))
        Slides
      • 37
        SM Higgs searches by CMS at the LHC
        Results are presented from searches for the standard model (SM) Higgs boson in proton-proton collisions at $\sqrt{s}=7$ and 8 TeV in five decay modes: $gamma \gamma$, $bb$, $\tau \tau$, $WW$, and $ZZ$. The analysed data correspond to integrated luminosities of up to 5.1 1/fb at 7 TeV and 5.3 1/fb at 8 TeV. The data exclude the existence of a SM Higgs boson in the ranges 110--122.5 and 127--600 GeV at 95\%~confidence level. An excess of events above the expected SM background is observed with a local significance of $4.9 \sigma$ around 125 GeV, which we attribute to the production of a previously unobserved particle. The evidence is strongest in the two final states with the best mass resolution: the two-photon final state and the final state with two pairs of charged leptons (electrons or muons). The combined excess in these channels alone gives a local significance of $5.0 \sigma$. An unconstrained fit to the excesses in these two final states yields a mass of $125.3~\pm 0.4~(\mathrm{stat})~\pm 0.5~(\mathrm{syst})$ GeV. Within the statistical uncertainties, the results obtained in all search channels are consistent with the expectations for a SM Higgs boson.
        Speaker: Mikhail Kirsanov (Russian Academy of Sciences (RU))
        Slides
      • 38
        Search for MSSM Higgs with the CMS detector at LHC
        In the minimal super-symmetric extension of the Standard Model (MSSM), the Higgs sector contains two Higgs boson doublets, including, after electroweak symmetry breaking, the CP-odd neutral scalar A0, the two charged scalars H±, and the two CP-even neutral scalars h and H0. The results in the search for neutral and charged Higgs bosons with the CMS detector at LHC are presented, based on the data samples collected at √s = 7 and 8 TeV. The neutral Higgs boson is searched in both the µ+µ- and τ+τ- final states, whereas the charged Higgs state is searched in top quark decays with at least one τ in the final state.
        Speaker: Federica Primavera (Universita e INFN (IT))
        Slides
      • 39
        Some lessons from observed Higgs-like boson
        Recent discovery of new like a Higgs boson at the LHC stimulated intensive discussions of many arising questions. To which extend the observed resonance corresponds to the SM Higgs, how to extract and measure properties of the resonance such as spin, P and C parities, what are implications to various BSM scenarios assuming not a SM nature of observed boson...? Short review of results of various approaches to address such questions is presented in the talk.
        Speaker: Eduard Boos (M.V. Lomonosov Moscow State University (RU))
        Slides
    • 19:00
      Farewell drink Conference Hall, Theoretical Division

      Conference Hall, Theoretical Division

      IHEP, Protvino