出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:A measurement of the J=y and y(2S) production cross sections in pp collisions at p s = 7 TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 pb1. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt charmonium states, as a function of the meson transverse momentum in several rapidity ranges.