Description
- Direct searches of the production of new particles (SUSY, Z', heavy quarks, ....)
Sarah Livermore
(University of Oxford (GB))
21/03/2012, 17:05
A search for resonant production of ttbar pairs with data collected in 2011 by ATLAS. The analyses presented here concentrate on the lepton + jets and fully leptonic final states, with datasets corresponding to a total integrated luminosity of 2.05 and 1.04 fb-1 respectively. Limits are set on the production cross-section times branching ratio to top quark pairs of resonances predicted by key...
Seyed Mohsen Etesami
(School of Particles and Accelerator Inst. for Res. in Fundam. S)
21/03/2012, 17:05
We present the results of a search for large extra spatial dimensions in events with dilepton final state using the 2/fb of data collected with the CMS detector at the LHC. The observed dilepton invariant mass distribution is found to be consistent with standard model expectation. Depending on the number of extra dimensions, limits are set on the onset of quantum gravity scale.
Yuya Azuma
(University of Tokyo (JP))
21/03/2012, 17:05
Mrs
Lea Gauthier
(CEA - Centre d'Etudes de Saclay (FR))
21/03/2012, 17:05
Samvel Khalatyan
(University of Illinois at Chicago (US))
21/03/2012, 17:05
A model-independent search is presented for the production of narrow heavy resonance with mass greater 1TeV decaying into top quark pairs in 7 TeV pp collisions at the LHC using 2011 data in the lepton+jets channel. In absence of evidence for a signal, we evaluate 95% C.L. upper limits on σ(pp → Z′ → t ̄t) · BR as a function of the invariant mass of the resonance.
Daniel Ventura
(University of Massachusetts, Amherst (US))
21/03/2012, 17:05
A search for the decay of a light Higgs (120 - 140 GeV) to a pair of weakly-interacting, long-lived particles in 1.94/fb of proton-proton collisions at √s = 7 TeV recorded in 2011 by the ATLAS detector is presented. The search strategy requires that both long-lived particles decay inside the muon spectrometer.
Daniel Cedric Troendle
(KIT - Karlsruhe Institute of Technology (DE))
21/03/2012, 17:05
A search for physics beyond the Standard Model using events with at least three leptons is described. Numerous exclusive channels are studied using data-driven techniques to quantify the SM backgrounds
26.
Search for supersymmetry in events with three leptons and missing transverse momentum with ATLAS
Julien de Graat
(LMU Munich)
21/03/2012, 17:05
A search for pair production of supersymmetric gauginos decaying into final states with three leptons and missing transverse momentum is presented. The analysis uses 2.1 fb-1 of 7 TeV proton-proton collision data delivered by the LHC and recorded with the ATLAS detector in 2011.
Loukas Gouskos
(University of Athens (GR))
21/03/2012, 17:05
A search for supersymmetry using single lepton events at CMS is presented. A lepton-projection variable, based on W-polarization, is used to discriminate the dominant backgrounds arising from top and W production.
Mr
Yi Chen
(California Institute of Technology (US))
21/03/2012, 17:05
A search is presented for new heavy particles using the razor variables. The search uses a mix of all-hadronic and leptonic samples to empirically model the various SM backgrounds. Constraints are placed on SUSY and exotic models.
Jared Sturdy
(University of California Riverside (US))
21/03/2012, 17:05
A search for supersymmetry using events with multijets and missing energy collected at CMS is presented. Backgrounds are evaluated using various data-driven techniques, and the results are interpreted within the context of the cMSSM as well as several simplified models.
Nikoloz Skhirtladze
(University of Florida (US))
21/03/2012, 17:05
The results of a search for new physics in events with two same-sign isolated leptons (electrons, muons), hadronic jets, and missing transverse energy in the final state are presented. The analysis is based on a data sample corresponding to an integrated luminosity of 4.7 fb-1 collected by the CMS experiment at the LHC. The observed numbers of events agree with the Standard Model predictions...
