Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV
Entidad
UAM. Departamento de Física TeóricaEditor
CERN; Elsevier B.V.Fecha de edición
2012-09-17Cita
10.1016/j.physletb.2012.07.059
Physics Letters B 716.1 (2012): 103–121
ISSN
0370-2693 (print); 1873-2445 (online)DOI
10.1016/j.physletb.2012.07.059Financiado por
We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC machine. We thank the technical and administrative staff at CERN and other CMS institutes, and acknowledge support from: FMSR (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); MICINN and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); TUBITAK and TAEK (Turkey); STFC (United Kingdom); DOE and NSF (USA)Versión del editor
http://dx.doi.org/10.1016/j.physletb.2012.07.059Materias
CMS; Physics; Dilepton; Top-like; Tprime; Fourth generation; FísicaNota
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMDerechos
© 2012 CERNEsta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 Internacional.
Resumen
The results of a search for pair production of a heavy, top-like quark, tꞌ, in the decay mode tꞌ tꞌ → bW + bW− →bℓ+ νbℓ −ν are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0 fb−1 in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of tꞌ tꞌ production is found. Upper limits on the production cross section as a function of tꞌ mass are presented, and tꞌ masses below 557 GeV/c2 are excluded at the 95% confidence level
Lista de ficheros
Google Scholar:Chatrchyan, S.
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Albajar Molera, Carmen
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Codispoti, G.
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Fernández Trocóniz Acha, Jorge
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CMS Collaboration
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