Search for new physics in events with same-sign dileptons and b-tagged jets in pp collisions at sqrt(s) = 7 TeV

Abstract

A search for new physics is performed using isolated same-sign dileptons with at least two b-quark jets in the final state. Results are based on a 4.98 inverse femtobarn sample of proton-proton collisions at a centre-of-mass energy of 7 TeV collected by the CMS detector. No excess above the standard model background is observed. Upper limits at 95% confidence level are set on the number of events from non-standard-model sources. These limits are used to set constraints on a number of new physics models. Information on acceptance and efficiencies are also provided so that the results can be used to confront additional models in an approximate way.

Published in the Journal of High Energy Physics

References in corpus (14)

• PYTHIA 6.4 Physics and Manual
• Threshold resummation for squark-antisquark and gluino-pair production at the LHC
• First measurement of the forward-backward charge asymmetry in top quark pair production
• Supersymmetry production cross sections in pp collisions at sqrt{s} = 7 TeV
• Effective four-fermion operators in top physics: a roadmap
• Top Quark Forward-Backward Asymmetry and Same-Sign Top Quark Pairs
• Search for new physics with same-sign isolated dilepton events with jets and missing transverse energy
• BRIDGE: Branching Ratio Inquiry/Decay Generated Events
• Search for supersymmetry in pp collisions at sqrt(s) = 7 TeV in final states with missing transverse momentum and b-jets with the ATLAS detector
• Top-antitop and Top-top Resonances in the Dilepton Channel at the CERN LHC
• Search for gluinos in events with two same-sign leptons, jets and missing transverse momentum with the ATLAS detector in pp collisions at sqrt(s) = 7 TeV
• Identifying Multi-Top Events from Gluino Decay at the LHC
• Models and Phenomenology of Maximal Flavor Violation
• Collider Signals of Maximal Flavor Violation: Same-Sign Leptons from Same-Sign Tops at the Tevatron

Cited by in corpus (23)

• Searches for electroweak production of charginos, neutralinos, and sleptons decaying to leptons and W, Z, and Higgs bosons in pp collisions at 8 TeV
• On Partial Compositeness and the CP asymmetry in charm decays
• Search for anomalous production of events with three or more leptons in pp collisions at sqrt(s) = 8 TeV
• Indirect Probes of the MSSM after the Higgs Discovery
• Search for anomalous production of prompt same-sign lepton pairs and pair-produced doubly charged Higgs bosons with $\sqrt{s}=8$ TeV $pp$ collisions using the ATLAS detector
• Search for direct top squark pair production in final states with one isolated lepton, jets, and missing transverse momentum in sqrt(s) = 7 TeV pp collisions using 4.7 fb-1 of ATLAS data
• Search for supersymmetry at sqrt(s)=8 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector
• Search for direct top squark pair production in events with a Z boson, b-jets and missing transverse momentum in sqrt(s)=8 TeV pp collisions with the ATLAS detector
• Framework for Model Independent Analyses of Multiple Extra Quark Scenarios
• Supersymmetric Crevices: Missing Signatures of RPV at the LHC
• QCD threshold corrections for gluino pair production at hadron colliders
• LHC Phenomenology of SO(10) Models with Yukawa Unification II
• Three-generation baryon and lepton number violation at the LHC
• Search for supersymmetry in final states with a single lepton, b-quark jets, and missing transverse energy in proton-proton collisions at sqrt(s) = 7 TeV
• Search for top quark flavour changing neutral currents in same-sign top quark production
• Multi-tops at the LHC
• Same-sign Tops: A Powerful Diagnostic Test for Models of New Physics
• Investigating the Quantum Properties of Jets and the Search for a Supersymmetric Top Quark Partner with the ATLAS Detector
• Large $A_t$ Without the Desert
• Signature of same-sign top pair production mediated by a nonuniversal $Z^{\prime }$ with QCD next-to-leading accuracy at the LHC
• Top Quark Polarization and the Search for New Physics
• Collider phenomenology of the 4D~composite Higgs model
• Measurement of the transverse polarization of electrons emitted in neutron decay -- nTRV experiment