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Comparing energy loss phenomenology

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 نشر من قبل Marco van Leeuwen
 تاريخ النشر 2009
  مجال البحث
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 تأليف M. van Leeuwen




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High-pT particle production is suppressed in heavy ion collisions due to parton energy loss in dense QCD matter. Here we present a systematic comparison of two different theoretical approximations to parton energy loss calculations: the opacity expansion and the multiple-soft scattering approximation for the simple case of a quark traversing a homogeneous piece of matter with fixed length (the TECHQM brick problem), with focus on the range of parameters that is relevant for interpreting RHIC measurements of high-pT hadron suppression.



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