Search for Bs0→μ+μ- and B0→μ+μ- decays in pp collisions at √s=7TeV

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A.M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.; Erö, J.; Fabjan, C.; Friedl, M.; Frühwirth, R.; Ghete, V.M.; Hammer, J.; Hänsel, S.; Hoch, M.; Hörmann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Krammer, M.; Liko, D.; Mikulec, I.; Pernicka, M.; Rahbaran, B.; Rohringer, H.; Schöfbeck, R.; Strauss, J.; Taurok, A.; Teischinger, F.; Trauner, C.; Wagner, P.; Waltenberger, W.; Walzel, G.; Widl, E.; Wulz, C.-E.; Mossolov, V.; Shumeiko, N.; Suarez Gonzalez, J.; Bansal, S.; Benucci, L.; De Wolf, E.A.; Janssen, X.; Luyckx, S.; Maes, T.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.

doi:10.1103/physrevlett.107.191802

Search for Bs0→μ+μ- and B0→μ+μ- decays in pp collisions at √s=7TeV

ArticleAçık Erişim

Özet

A search for the rare decays Bs0→μ+μ- and B0→μ+μ- is performed in pp collisions at √s=7TeV, with a data sample corresponding to an integrated luminosity of 1.14fb-1, collected by the CMS experiment at the LHC. In both cases, the number of events observed after all selection requirements is consistent with expectations from background and standard-model signal predictions. The resulting upper limits on the branching fractions are B(Bs0→μ +μ-)<1.9×10-8 and B(B0→μ+μ-)<4.6×10-9, at 95% confidence level. © 2011 CERN.

Anahtar Kelimeler

Atomic physics Branching fractions Confidence levels Data sample Integrated luminosity Pp collisions Rare decays Standard model Upper limits Physics

RDL Kalıcı Bağlantı (PID)

https://rdlopen.rawdatalibrary.net/r/ebyu/15729Resmi atıflarda kullanılan kalıcı adres

DOI

https://doi.org/10.1103/physrevlett.107.191802Yayıncı resmi DOI adresi

Tam Kayıt

Alan	Değer	Dil
dc.contributor.author	Chatrchyan, S.
dc.contributor.author	Khachatryan, V.
dc.contributor.author	Sirunyan, A.M.
dc.contributor.author	Tumasyan, A.
dc.contributor.author	Adam, W.
dc.contributor.author	Bergauer, T.
dc.contributor.author	Dragicevic, M.
dc.contributor.author	Erö, J.
dc.contributor.author	Fabjan, C.
dc.contributor.author	Friedl, M.
dc.contributor.author	Frühwirth, R.
dc.contributor.author	Ghete, V.M.
dc.contributor.author	Hammer, J.
dc.contributor.author	Hänsel, S.
dc.contributor.author	Hoch, M.
dc.contributor.author	Hörmann, N.
dc.contributor.author	Hrubec, J.
dc.contributor.author	Jeitler, M.
dc.contributor.author	Kiesenhofer, W.
dc.contributor.author	Krammer, M.
dc.contributor.author	Liko, D.
dc.contributor.author	Mikulec, I.
dc.contributor.author	Pernicka, M.
dc.contributor.author	Rahbaran, B.
dc.contributor.author	Rohringer, H.
dc.contributor.author	Schöfbeck, R.
dc.contributor.author	Strauss, J.
dc.contributor.author	Taurok, A.
dc.contributor.author	Teischinger, F.
dc.contributor.author	Trauner, C.
dc.contributor.author	Wagner, P.
dc.contributor.author	Waltenberger, W.
dc.contributor.author	Walzel, G.
dc.contributor.author	Widl, E.
dc.contributor.author	Wulz, C.-E.
dc.contributor.author	Mossolov, V.
dc.contributor.author	Shumeiko, N.
dc.contributor.author	Suarez Gonzalez, J.
dc.contributor.author	Bansal, S.
dc.contributor.author	Benucci, L.
dc.contributor.author	De Wolf, E.A.
dc.contributor.author	Janssen, X.
dc.contributor.author	Luyckx, S.
dc.contributor.author	Maes, T.
dc.contributor.author	Mucibello, L.
dc.contributor.author	Ochesanu, S.
dc.contributor.author	Roland, B.
dc.contributor.author	Rougny, R.
dc.contributor.author	Selvaggi, M.
dc.contributor.author	Van Haevermaet, H.
dc.date.accessioned	2026-10-18T20:30:34.615956096Z
dc.date.available	2026-10-18T20:30:34.615956096Z
dc.date.issued	2011
dc.description.abstract	A search for the rare decays Bs0→μ+μ- and B0→μ+μ- is performed in pp collisions at √s=7TeV, with a data sample corresponding to an integrated luminosity of 1.14fb-1, collected by the CMS experiment at the LHC. In both cases, the number of events observed after all selection requirements is consistent with expectations from background and standard-model signal predictions. The resulting upper limits on the branching fractions are B(Bs0→μ +μ-)<1.9×10-8 and B(B0→μ+μ-)<4.6×10-9, at 95% confidence level. © 2011 CERN.
dc.description.sponsorship	National Science Foundation, NSF; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF, (123501); Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, SNF; Science and Technology Facilities Council, STFC, (GRIDPP); Science and Technology Facilities Council, STFC
dc.identifier.doi	10.1103/physrevlett.107.191802
dc.identifier.issn	0031-9007
dc.identifier.issue	19
dc.identifier.scopus	2-s2.0-80155205577
dc.identifier.startpage	191802
dc.identifier.uri	https://rdlopen.rawdatalibrary.net/r/ebyu/15729
dc.identifier.volume	107
dc.language.iso	en
dc.publisher	American Physical Society
dc.relation.ispartof	Physical Review Letters
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Atomic physics
dc.subject	Branching fractions
dc.subject	Confidence levels
dc.subject	Data sample
dc.subject	Integrated luminosity
dc.subject	Pp collisions
dc.subject	Rare decays
dc.subject	Standard model
dc.subject	Upper limits
dc.subject	Physics
dc.title	Search for Bs0→μ+μ- and B0→μ+μ- decays in pp collisions at √s=7TeV
dc.type	Article
dspace.entity.type	Publication
rdl.citation.scopus	56
rdl.oa.status	gold
rdl.source.index	SCOPUS