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    J/ψ and ψ (2S) production in pp collisions at √s=7Tev

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    Author
    CMS Collaboration; Adair, A.; Boulahouache, C.; Cuplov, V.; Ecklund, K.M.; More... Geurts, F.J.M.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. Less...
    Date
    2012
    Abstract
    A measurement of the J/ψ and ψ(2S) production cross sections in pp collisions at √s=7TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 pb−1. 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 and integrated in the kinematical regions considered in this study. In addition, cross sections restricted to the acceptance of the CMS detector are given, which are not affected by the polarization of the charmonium states. The ratio of the differential production cross sections of the two states, where systematic uncertainties largely cancel, is also determined. The branching fraction of the inclusive B → ψ(2S)X decay is extracted from the ratio of the non-prompt cross sections to be: B(B→ψ(2S)X)=(3.08±0.12(stat.+syst.)±0.13(theor.)±0.42(BPDG))×10−3.
    Citation
    CMS Collaboration, Adair, A., Boulahouache, C., et al.. "J/ψ and ψ (2S) production in pp collisions at √s=7Tev." Journal of High Energy Physics, 2012, no. 11 (2012) Springer: http://dx.doi.org/10.1007/JHEP02(2012)011.
    Published Version
    http://dx.doi.org/10.1007/JHEP02(2012)011
    Keyword
    Hadron-Hadron Scattering
    Type
    Journal article
    Publisher
    Springer
    Citable link to this page
    https://hdl.handle.net/1911/80973
    Rights
    JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
    Link to License
    https://creativecommons.org/licenses/by/4.0/
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    • Faculty Publications [5245]
    • Physics and Astronomy Publications [1836]

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    Managed by the Digital Scholarship Services at Fondren Library, Rice University
    Physical Address: 6100 Main Street, Houston, Texas 77005
    Mailing Address: MS-44, P.O.BOX 1892, Houston, Texas 77251-1892
    Site Map