| Original Articles |
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Thermalization of Quark Matter Produced at the Highest Energy of a Relativistic Heavy-Ion Collider |
| XU Xiao-Ming |
| Department of Physics, Shanghai University, Shanghai 200444
Nuclear Physics Division, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, PO Box 800204, Shanghai 201800 |
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| Cite this article: |
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XU Xiao-Ming 2005 Chin. Phys. Lett. 22 1631-1633 |
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Abstract Thermalization of quark matter is studied via a transport equation, which includes triple-quark elastic scattering amplitudes calculated in perturbative QCD. The triple-quark scatterings are demonstrated to be important for an anisotropic initial quark distribution produced in central Au-Au collisions at √SNN=200GeV. By examining momentum isotropy to which the transport equation leads, we can determine a thermalization time of 2.2fm/c for quark matter itself to thermalize by the two-quark and the triple-quark elastic scatterings. Meanwhile, an initial thermal quark distribution function is obtained.
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| Keywords:
24.85.+p
12.38.Mh
25.75.Dw
25.75.Gz
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Published: 01 July 2005
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| PACS: |
24.85.+p
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(Quarks, gluons, and QCD in nuclear reactions)
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12.38.Mh
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(Quark-gluon plasma)
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25.75.Dw
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(Particle and resonance production)
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25.75.Gz
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(Particle correlations and fluctuations)
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