Seminars and Colloquia

J.Bernardini (SNS),"Upsilon, J/Psi and b-hadron production cross sections in pp collisions at sqrt(s)=7 TeV with the CMS experiment”

Europe/Rome
131 (INFN Edificio C)

131

INFN Edificio C

Description
I will present a measurement of the total and differential production cross sections of J/psi and Upsilon mesons in proton-proton collisions at sqrt(s) = 7 TeV at LHC, with the CMS experiment. The analysis is based on a sample of about 30 thousand J/Psi and 10 thousand Upsilon using the di-muon decay channel. The differential production cross sections are measured up to 30GeV/c in the meson pT, for different rapidity ranges. The b-hadron component has been determined from a fit to the decay length distribution and the pT differential cross sections have been compared with the theory models.