Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/5041
Title: Prompt and non-prompt J/? production in pp collisions at ?s =7 TeV
Authors: CMS Collaboration
Demir, Durmuş Ali
Keywords: Transverse momentum
Decays of bottom mesons
Quantum Chromodynamics (QCD)
Issue Date: Mar-2011
Publisher: Springer Verlag
Source: Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., Erö, J., ...CMS Collaboration (2011). Prompt and non-prompt J/ψ production in pp collisions at √s =7 TeV. European Physical Journal C, 71(3), 1-26. doi:10.1140/epjc/s10052-011-1575-8
Abstract: The production of J/ψ mesons is studied in pp collisions at √s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 nb-1. The J/ψ differential cross section is determined, as a function of the J/ψ transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/ψ) component. Integrated over J/ψ transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range {pipe}y{pipe} < 2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 ± 2.1(stat.) ± 3.0(syst.) ± 7.8(luminosity) nb for prompt J/ψ mesons assuming unpolarized production and 26.0 ± 1.4(stat.) ± 1.6(syst.) ± 2.9(luminosity) nb for J/ψ mesons from b-hadron decays. © CERN for the benefit of the CMS collaboration 2011.
URI: http://doi.org/10.1140/epjc/s10052-011-1575-8
http://hdl.handle.net/11147/5041
ISSN: 1434-6044
Appears in Collections:Physics / Fizik
Rectorate / Rektörlük
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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