par Chatrchyan, Serguei;Charaf, Othman 
;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Raval, Amita ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ; [et al.]
Référence Physical review letters, 107, 19, 191802
Publication Publié, 2011
;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Raval, Amita ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ; [et al.]Référence Physical review letters, 107, 19, 191802
Publication Publié, 2011
Article révisé par les pairs
| Résumé : | 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. |
