Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue European Physical Journal C: Particles and Fields Année : 2016

Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector

M. Aaboud , Z. Barnovska (1) , N. Berger (1) , M. Delmastro (1) , L. Di Ciaccio (1) , S. Elles (1) , T. Guillemin (1) , K. Grevtsov (1) , T. Hryn’ova (1) , S. Jézéquel (1) , I. Koletsou (1) , R. Lafaye (1) , Jérémy Lévêque (1) , P. Mastrandea (1) , G. Sauvage (1) , E. Sauvan (1) , O. Simard (1) , B.H. Smart (1) , T. Todorov (1) , I. Wingerter-Seez (1) , E. Yatsenko (1) , D. Boumediene (2) , E. Busato (2) , D. Calvet (2) , S. Calvet (2) , A.R. Chomont (2) , J. Donini (2) , Ph. Gris (2) , R. Madar (2) , D. Pallin (2) , S.M. Romano Saez (2) , C. Santoni (2) , D. Simon (2) , F. Vazeille (2) , S. Albrand (3) , S. Berlendis (3) , C. Camincher (3) , J. Collot (3) , S. Crépé-Renaudin (3) , P.A. Delsart (3) , C. Gabaldon (3) , M.H. Genest (3) , J. Gradin (3) , J.Y. Hostachy (3) , F. Ledroit-Guillon (3) , A. Lleres (3) , A. Lucotte (3) , F. Malek (3) , E. Petit (3) , J. Stark (3) , B. Trocmé (3) , M. Wu (3) , M. Alstaty (4) , M. Barbero (4) , A. Calandri (4) , T.P. Calvet (4) , Y. Coadou (4) , C. Diaconu (4) , Sara Diglio (4) , F. Djama (4) , V. Ellajosyula (4) , L. Feligioni (4) , J. Gao (4) , A. Hadef (4) , G.D. Hallewell (4) , F. Hubaut (4) , S.J. Kahn (4) , E. B. F. G. Knoops (4) , E. Le Guirriec (4) , J. Liu (4) , K. Liu , D. Madaffari (4) , E. Monnier (4) , S. Muanza (4) , E. Nagy (4) , P. Pralavorio (4) , Y. Rodina (4) , A. Rozanov (4) , M. Talby (4) , T. Theveneaux-Pelzer (4) , R.E. Ticse Torres (4) , S. Tisserant (4) , J. Toth (4) , F. Touchard (4) , L. Vacavant (4) , Chen Wang (4)
M. Aaboud
  • Fonction : Auteur
T. Hryn’ova
S. Calvet
Y. Coadou
K. Liu
  • Fonction : Auteur
Chen Wang
  • Fonction : Auteur
  • PersonId : 829307

Résumé

A study of the decays B0→μ+μ− and B0s→μ+μ− has been performed using data corresponding to an integrated luminosity of 25 fb−1 of 7 TeV and 8 TeV proton--proton collisions collected with the ATLAS detector during the LHC Run 1. For B0, an upper limit on the branching fraction is set at B(B0→μ+μ−)<4.2×10−10 at 95% confidence level. For B0s, the branching fraction B(B0s→μ+μ−)=(0.9+1.1−0.8)×10−9 is measured. The results are consistent with the Standard Model expectation with a p-value of 4.8%, corresponding to 2.0 standard deviations.

Dates et versions

in2p3-01304245 , version 1 (19-04-2016)

Identifiants

Citer

M. Aaboud, Z. Barnovska, N. Berger, M. Delmastro, L. Di Ciaccio, et al.. Study of the rare decays of B0s and B0 into muon pairs from data collected during the LHC Run 1 with the ATLAS detector. European Physical Journal C: Particles and Fields, 2016, 76, pp.513. ⟨10.1140/epjc/s10052-016-4338-8⟩. ⟨in2p3-01304245⟩
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