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Influence of the Nucleon Hard Partons Distribution on J/Ψ Suppression in a GMC Framework

  • 1Physics Department, Academy of Armored Forces Engineering of PLA, Beijing 100072 2Physics Graduate School, Shijiazhuang Railway Institute, Shijiazhuang 050043 3Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049

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  • Received Date: December 16, 2009
  • Published Date: April 30, 2010
    Abstract
  • In a Glauber Monte Carlo framework, taking into account the transverse spatial distribution of hard partons in the nucleon, we analyze the nuclear modification factor Rd Au for J/φ in d+Au collisions with EPS09 shadowing parametrization. After the influence of nucleon hard partons distribution is considered, a clearly upward correction is revealed for the dependence of Rd Au on Ncoll in peripheral d+Au collisions, however, an unconspicuous correction is shown for the results versus pT. The theoretical results are in good agreement with the experimental data from PHENIX.
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