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Table 4 ; $J/ψ$ and $ψ_{2S}$ production in $pp$ collisions at $\sqrt{s}=7$ TeV

Published in 2012 by Serguei Chatrchyan, Vardan Khachatryan, Albert M. Sirunyan, Armen Tumasyan, Wolfgang Adam, Thomas Bergauer, Marko Dragicevic, Janos Erö, Christian Fabjan, Markus Friedl, Rudolf Fruehwirth, Vasile Mihai Ghete, Josef Hammer, Michael Hoch, Natascha Hörmann and other authors.
This paper is available in a repository.
This paper is available in a repository.

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Abstract

CERN-LHC. Measurement of J/PSI and PSI(2S) production cross sections in proton-proton collisions at a centre-of-mass energy of 7 TeV. The data sample used, collected in 2010, has a total integrated luminosity of 37 pb-1. This extends the previously published CMS analysis (EPJ C71(2011)1575) with a larger amount of statistically independent data. Cross sections are extracted for both prompt and non-prompt (via b-hadron decay) production with both acceptance corrected and uncorrected data given. Cross section ratios are presented as well as estimates of the effects of four different poarization scenarios for b-hadron decay (fully longitudinal and transvere in both the Collins-Soper and Helicity frames). ; Other ; The (unpolarised) acceptance corrected J/PSI cross section times branching ratio to MU+ MU- for (PROMPT) and NON-PROMPT) production in the |rapidity| bin 1.6-2.1.