par Khachatryan, Vardan;Barria, Patrizia
;Caillol, Cécile
;Clerbaux, Barbara
;De Lentdecker, Gilles
;Delannoy, Hugo
;Fasanella, Giuseppe
;Favart, Laurent
;Gay, Arnaud
;Grebenyuk, Anastasia
;Karapostoli, Georgia
;Lenzi, Thomas
;Leonard, Alexandre
;Maerschalk, Thierry
;Marinov, Audrey
;Pernie, Luca
;Randle-Conde, Aidan Sean
;Reis, Thomas
;Seva, Tomislav
;Vander Velde, Catherine
;Vanlaer, Pascal
;Yonamine, Ryo
;Zenoni, Florian
;Zhang, Fengwangdong
; [et al.]
Référence Physics letters. Section B, 753, page (424-448)
Publication Publié, 2016-02























Référence Physics letters. Section B, 753, page (424-448)
Publication Publié, 2016-02
Article révisé par les pairs
Résumé : | The angular distributions and the differential branching fraction of the decay B0→K⁎(892)0μ+μ− are studied using data corresponding to an integrated luminosity of 20.5 fb−1 collected with the CMS detector at the LHC in pp collisions at s=8 TeV. From 1430 signal decays, the forward–backward asymmetry of the muons, the K⁎(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the dimuon invariant mass squared. The measurements are among the most precise to date and are in good agreement with standard model predictions. |