Journal article
Search for pair produced fourth-generation up-type quarks in pp collisions at √s=7 TeV with a lepton in the final state
Physics letters. B, Vol.718(2), pp.307-328
12/01/2012
DOI: 10.1016/j.physletb.2012.10.038
Abstract
The results of a search for the pair production of a fourth-generation up-type quark (t') in proton-proton collisions at √s=7 TeV are presented, using data corresponding to an integrated luminosity of about 5.0 fb-1 collected by the Compact Muon Solenoid experiment at the LHC. The t' quark is assumed to decay exclusively to a W boson and a b quark. Events with a single isolated electron or muon, missing transverse momentum, and at least four hadronic jets, of which at least one must be identified as a b jet, are selected. No significant excess of events over standard model expectations is observed. Upper limits for the t't' production cross section at 95% confidence level are set as a function of t' mass, and t'-quark production for masses below 570 GeV is excluded. The search is equally sensitive to nonchiral heavy quarks decaying to Wb. In this case, the results can be interpreted as upper limits on the production cross section times the branching fraction to Wb.
Details
- Title: Subtitle
- Search for pair produced fourth-generation up-type quarks in pp collisions at √s=7 TeV with a lepton in the final state
- Creators
- Serguei ChatrchyanLukas BäniPierluigi BortignonMarco A BuchmannBruno CasalNicolas ChanonAmanda DeisherGünther DissertoriMichael DittmarMauro DonegàMarc DünserJürg EugsterKlaus FreudenreichChristoph GrabDmitry HitsPierre LecomteWerner LustermannAndrea C MariniPablo Martinez Ruiz Del ArbolNiklas MohrFilip MoortgatChristoph NägeliPascal NefFrancesca Nessi-TedaldiFrancesco PandolfiLuc PapeFelicitas PaussMarco PeruzziFrédéric J RongaMarco RossiniLeonardo SalaAnn-Karin SanchezAndrey StarodumovBenjamin StiegerMaiko TakahashiLudwig TauscherAlessandro TheaKonstantinos TheofilatosDaniel TreilleRainer WallnyChristina UrschelerHannsjörg A Weber - RWTH Aachen UniversityLukas WehrliCMS Collaboration
- Contributors
- Y Onel (Contributor) - University of Iowa, Physics and Astronomy
- Resource Type
- Journal article
- Publication Details
- Physics letters. B, Vol.718(2), pp.307-328
- DOI
- 10.1016/j.physletb.2012.10.038
- ISSN
- 0370-2693
- eISSN
- 1873-2445
- Publisher
- Elsevier
- Grant note
- name: FMSR; name: FNRS; name: FWO; name: CNPq; name: CAPES; name: FAPERJ; name: FAPESP; name: MES; name: CERN; name: CAS; name: MoST; name: NSFC; name: COLCIENCIAS; name: MSES; name: RPF; name: MoER; name: SF0690030s09; name: ERDF; name: Academy of Finland; name: MEC; name: HIP; name: CEA; name: CNRS/IN2P3; name: BMBF; name: DFG; name: HGF; name: GSRT; name: OTKA; name: NKTH; name: DAE; name: DST; name: IPM; name: SFI; name: INFN; name: NRF; name: WCU; name: LAS; name: CINVESTAV; name: CONACYT; name: SEP; name: UASLP-FAI; name: MSI; name: PAEC; name: MSHE; name: NSC; name: FCT; name: JINR; name: MON; name: RosAtom; name: RAS; name: RFBR; name: MSTD; name: MICINN; name: CPAN; name: Swiss Funding Agencies; name: NSC; name: TUBITAK; name: TAEK; name: STFC; name: DOE; name: NSF
- Language
- English
- Date published
- 12/01/2012
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199852202771
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