Speaker
Nuno Leonardo
(Purdue)
Description
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.
Primary authors
Bolek Wyslouch
(CMS)
Manfred Krammer
(CMS)
