Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation

ZHOU Yun-Qing; YANG Fang; LI Jia-Rong

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2003, Vol. 27> Issue(6) : 515-520

Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation

Institute of Particle Physics,Huazhong Normal University,Wuhan 430079,China

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Abstract：
From QGP kinetic equations with collision integrals,by using the realaxation time approximation,we calculate the distribution functions to the second order correction. We obtain the distribution functions for quarks (and anti-quarks) and gluons under the perturbation of the fluctuation of the color field.Then in the high-temperature-low-density area,we discuss the characteristics of the distribution functions,and use them to get the net baryon density and the energy density.

References

[1]

. ZHANG Xiao-Fei,LI Jia-Rong.Ann.Phys.(N.Y.),1996,250:433 2. Dutta D,Kumar K,Mohanty A K et al.Phys.Rev.,1999,C60:014905 3. Alam J,Raha S,Sinha B .Phys.Rep.,1996,272:2434. Heinz U.Phys.Rev.Lett.,1983,51:351;Heinz U.Ann.Phys.,1985,161:485. Shuryak E,XIONG L.Phys.Rev.Lett.,1993,70:2241 6. ZHANG Xiao-Fei,LI Jia-Rong.Phys.Rev.,1995,C52:9677. Biro T S,MullerB ,WANGXN .Phys.Lett.,1992,B283:1718. Blaizot J P,Iancu E.Nucl.Phys.,2000,B570:3269. Bdeker D.Phys.Lett.,1998,B426:35110. Kelly P F,LIU Q,Lucchesi C et al.Phys.Rev.,1994,D50:420911. YANG Fang,ZHOU Yun-Qing,LI Jia-Rong.HEP NP ,2003,27(1):58(inC hinese)(杨芳,周运清,李家荣.高能物理与核物理,2003,27(1):58)12. Heinz U.Phys.Rev.Lett.,1983,51:35113. Elze H T Z.Phys.,1988,C38:21114. HOU De-Fu,LI Jia-Rong.Nucl.Phys.,1997,A618:371

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[2]	Cheng Qinghua , Hu Yuan , Liu Lianshou . An Algorithm for Increasing the Ratio of QGP Candidate Events in Relativistie Heavy Ion Collision Data Sample Using Factorial Moment Technique. Chinese Physics C, 1999, 23(10): 998-1003.
[3]	Wang Xin , Li Jiarong . Two-Loop Thermodyn amic Potential of Pure Gauge Fields in QGP. Chinese Physics C, 1998, 22(7): 614-625.
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[6]	Chen Xiangjun . Classical Transport Equation of Gluons in QGP. Chinese Physics C, 1997, 21(7): 597-603.
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ZHOU Yun-Qing, YANG Fang and LI Jia-Rong. Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation[J]. Chinese Physics C, 2003, 27(6): 515-520.

ZHOU Yun-Qing, YANG Fang and LI Jia-Rong. Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation[J]. Chinese Physics C, 2003, 27(6): 515-520. shu

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Received: 2002-09-16
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Distribution Functions in QGP Kinetic Equations under Relaxation Time Approximation

Corresponding author: ZHOU Yun-Qing,

Institute of Particle Physics,Huazhong Normal University,Wuhan 430079,China

Received Date: 2002-09-16
Accepted Date: 1900-01-01
Available Online: 2003-06-05

Abstract: From QGP kinetic equations with collision integrals,by using the realaxation time approximation,we calculate the distribution functions to the second order correction. We obtain the distribution functions for quarks (and anti-quarks) and gluons under the perturbation of the fluctuation of the color field.Then in the high-temperature-low-density area,we discuss the characteristics of the distribution functions,and use them to get the net baryon density and the energy density.