22-28 July 2010
Palais des Congrès de Paris
Europe/Paris timezone

Measurement of J/psi, Upsilon and b-hadron production in proton-proton collisions at sqrt(s) = 7 TeV with the CMS experiment

22 Jul 2010, 09:45
Salle 242 ()

Salle 242

Parallel Session Talk 05 - Heavy Quarks Properties (experiment and theory) 05 - Heavy Quarks Properties (experiment and theory)


Nuno Leonardo (Purdue)


We present the first measurements of the J/ψ and Υ production cross sections in proton-proton collisions at 7 TeV, as measured by the CMS experiment using the dimuon decay channel. For the J/ψ we give the inclusive and the prompt differential cross sections, versus transverse momentum, as well as the beauty fraction, statistically separating the two contributions through a fit to the lifetime distribution, using the distance between the dimuon vertex and the interaction point. For the Υ, we present the 1S cross section and the (2S+3S)/1S cross-section ratio, both versus transverse momentum.

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