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Search for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at √s = 7 TeV

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Özet

Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at √s = 7TeV, undertaken with the CMS experiment at the LHC. The b′ quarks are assumed to decay exclusively to tW. The b′b̄′ → tW-t̄W+ process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb-1, observed events are compared to the standard model background predictions, and the existence of b′ quarks having masses below 611 GeV/c2 is excluded at 95% confidence level.

Anahtar Kelimeler

Hadron-Hadron Scattering
RDL Kalıcı Bağlantı (PID)
https://rdlopen.rawdatalibrary.net/r/ebyu/15580Resmi atıflarda kullanılan kalıcı adres
DOI
https://doi.org/10.1007/jhep05(2012)123Yayıncı resmi DOI adresi
Tam Kayıt
AlanDeğerDil
dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorDragicevic, M.
dc.contributor.authorErö, J.
dc.contributor.authorFabjan, C.
dc.contributor.authorFriedl, M.
dc.contributor.authorFrühwirth, R.
dc.contributor.authorGhete, V.M.
dc.contributor.authorHammer, J.
dc.contributor.authorHörmann, N.
dc.contributor.authorHrubec, J.
dc.contributor.authorJeitler, M.
dc.contributor.authorKiesenhofer, W.
dc.contributor.authorKrammer, M.
dc.contributor.authorLiko, D.
dc.contributor.authorMikulec, I.
dc.contributor.authorPernicka, M.
dc.contributor.authorRahbaran, B.
dc.contributor.authorRohringer, C.
dc.contributor.authorRohringer, H.
dc.contributor.authorSchöfbeck, R.
dc.contributor.authorStrauss, J.
dc.contributor.authorTaurok, A.
dc.contributor.authorTeischinger, F.
dc.contributor.authorWagner, P.
dc.contributor.authorWaltenberger, W.
dc.contributor.authorWalzel, G.
dc.contributor.authorWidl, E.
dc.contributor.authorWulz, C.-E.
dc.contributor.authorMossolov, V.
dc.contributor.authorShumeiko, N.
dc.contributor.authorSuarez Gonzalez, J.
dc.contributor.authorBansal, S.
dc.contributor.authorCerny, K.
dc.contributor.authorCornelis, T.
dc.contributor.authorDe Wolf, E.A.
dc.contributor.authorJanssen, X.
dc.contributor.authorLuyckx, S.
dc.contributor.authorMaes, T.
dc.contributor.authorMucibello, L.
dc.contributor.authorOchesanu, S.
dc.contributor.authorRoland, B.
dc.contributor.authorRougny, R.
dc.contributor.authorSelvaggi, M.
dc.contributor.authorVan Haevermaet, H.
dc.contributor.authorVan Mechelen, P.
dc.date.accessioned2026-10-18T20:30:26.067925279Z
dc.date.available2026-10-18T20:30:26.067925279Z
dc.date.issued2012
dc.description.abstractResults are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at √s = 7TeV, undertaken with the CMS experiment at the LHC. The b′ quarks are assumed to decay exclusively to tW. The b′b̄′ → tW-t̄W+ process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb-1, observed events are compared to the standard model background predictions, and the existence of b′ quarks having masses below 611 GeV/c2 is excluded at 95% confidence level.
dc.description.sponsorshipScience and Technology Facilities Council, STFC, (ST/F007434/1, ST/G502347/1, PP/D004284/1, GRIDPP, CMS, ST/I002200/1, ST/K001604/1, ST/H00081X/2, ST/J004901/1, ST/J005665/1, ST/I505580/1, ST/I005912/1, ST/F006748/1, ST/F007094/1, ST/I000410/1, ST/I505572/1, ST/H000925/1); Science and Technology Facilities Council, STFC; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (123501, 134939); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF
dc.identifier.doi10.1007/jhep05(2012)123
dc.identifier.issn1126-6708
dc.identifier.issue5
dc.identifier.scopus2-s2.0-84863840797
dc.identifier.startpage123
dc.identifier.urihttps://rdlopen.rawdatalibrary.net/r/ebyu/15580
dc.identifier.volume2012
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.ispartofJournal of High Energy Physics
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHadron-Hadron Scattering
dc.titleSearch for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at √s = 7 TeV
dc.typeArticle
dspace.entity.typePublication
rdl.citation.scopus38
rdl.oa.statusgold
rdl.source.indexSCOPUS