Jet energy loss and bulk parton collectivity in nucleus-nucleus collisions at RHIC

  • Nucleus-nucleus collisions at RHIC produce high temperature and high energy density matter which exhibits partonic degrees of freedom. We will discuss measurements of nuclear modification factors for light hadrons and non-photonic electrons from heavy quark decays, which reflect the flavor dependence of energy loss of high momentum partons traversing the dense QCD medium. The dense QCD medium responds to energy loss of high momentum partons in a pattern consistent with that expected from a hydrodynamic fluid. The hadronization of bulk partonic matter exhibits collectivity with effective partonic degrees of freedom. Nuclear collisions at RHIC provide an intriguing environment, where many constituent quark ingredients are readily available for possible formation of exotic particles through quark coalescence or recombinations.
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HUANG Huan-Zhong. Jet energy loss and bulk parton collectivity in nucleus-nucleus collisions at RHIC[J]. Chinese Physics C, 2009, 33(6): 456-462. doi: 10.1088/1674-1137/33/6/011
HUANG Huan-Zhong. Jet energy loss and bulk parton collectivity in nucleus-nucleus collisions at RHIC[J]. Chinese Physics C, 2009, 33(6): 456-462.  doi: 10.1088/1674-1137/33/6/011 shu
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Received: 2008-07-24
Revised: 1900-01-01
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Jet energy loss and bulk parton collectivity in nucleus-nucleus collisions at RHIC

    Corresponding author: HUANG Huan-Zhong,
  • Department of Physics and Astronomy, University of California, Los Angeles, CA 90095-1547, USADepartment of Engineering Physics, Tsinghua University, Beijing 100084, China

Abstract: Nucleus-nucleus collisions at RHIC produce high temperature and high energy density matter which exhibits partonic degrees of freedom. We will discuss measurements of nuclear modification factors for light hadrons and non-photonic electrons from heavy quark decays, which reflect the flavor dependence of energy loss of high momentum partons traversing the dense QCD medium. The dense QCD medium responds to energy loss of high momentum partons in a pattern consistent with that expected from a hydrodynamic fluid. The hadronization of bulk partonic matter exhibits collectivity with effective partonic degrees of freedom. Nuclear collisions at RHIC provide an intriguing environment, where many constituent quark ingredients are readily available for possible formation of exotic particles through quark coalescence or recombinations.

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