2011/06/20 by S. Chatrchyan, CMS Collaboration, V. Khachatryan +98 · 2 citations
Chemistry · Physics and Astronomy · #Branching fraction #Chemistry #Crystallography #High-Energy Particle Collisions Research #Large Hadron Collider #Luminosity #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Rapidity #hep-ex
paper · pdf · doi:10.1103/physrevd.84.052008
published as Phys.Rev.D84:052008,2011
arxiv created 2011/06/20 · openalex publication_date 2011/09/20 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
The Bs0 differential production cross section is measured as functions of the transverse momentum and rapidity in pp collisions at √(s)=7 TeV, using the Bs0\ensuremath→J/\ensuremathψ\ensuremathφ decay, and compared with predictions based on perturbative QCD calculations at next-to-leading order. The data sample, collected by the CMS experiment at the LHC, corresponds to an integrated luminosity of 40 pb^\ensuremath-1. The Bs0 is reconstructed from the decays J/\ensuremathψ\ensuremath→\ensuremathμ+\ensuremathμ^\ensuremath- and \ensuremathφ\ensuremath→K+K^\ensuremath-. The integrated Bs0 cross section times Bs0\ensuremath→J/\ensuremathψ\ensuremathφ branching fraction in the range 8<pTB<50 GeV/c and |yB|<2.4 is measured to be 6.9\ifmmode±\else\textpm\fi0.6\ifmmode±\else\textpm\fi0.6 nb, where the first uncertainty is statistical and the second is systematic.