Chinese Physics C > 1996, Vol. 20 > Issue(6): 533-537

On the Next to Leading Order Debye Screening Mass in QGP

Hou Defu^,,
Li Jiarong

Institute of Particls Physics,Hua-Zhong Normal University,Wuhan 430070

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Abstract：
The next to leading order Debye screening mass in QGP is calculated by taking into accout the damping rate of gluons in the formalism of real time finite temperature QCD,and the infrared singularity in naive calculation is cured without adding to the nonperturbative magnetic screening mass as the cutoff.In addition,the result is shown to be postive and gauge-independent,and is compared with the lattice simulation result.

References

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Muller,Physics of Quark-Gluon Plasma,in Proceedings of the Workshop on Pre-equilibrium Parton Dynamics,（Eds.Xingnian Wang）,Berkerly,California,1994;R.Hwa.ed.,Quark-gluon plasma,World Scientific,1990;Proceedings of quark matter,93,Nucl.Phys.,A566（1994）.[2]E.Braaten,T.C.Tuan,Phys,Rev.Lett.,66（1991）2183;U.Heinz,Ann.Phys.,168（1986）148.[3]A.Rebhan,Phys.Rev.,D48（1993）R3967;E.Braaten,A.Nieto,Phys.Rev.Lett.,73（1994）2402.[4]K.Kajiantie,J.Kapusta,Phys.Lett.101B（1992）229;T.Toimela,Z.Phys.,C27（1985）289.[5]A.Rebhan,Phys.Rev.,D46（1992）482;R.D.Pisarski,Phys.Rev.,D47（1993）5589.[6]R.D Pisarski,Nucl.Phys.,A525（1991）175c;Phys.Rev.Lett.,63（1989）1129;E.Braaten,R.D.Pisarski,Phys.Rev.,D42（1990）2156;Phys.Rev.Lett.,64（1990）1338.[7]N.P.Landsman,Ch.G.Van Weert,Phys.Rep.,145（1987）141;P.A.Henning,Nucl.Phys.,A571（1994）617;N.P.Landsman,Ann.Phys.,186（1988）141.[8]R.Kobes,Phys.Rev.,D42（1990）562;Phys.Rev.,D43（1991）1269;I.Ojima,Ann.Phys.,137（1981）1.[9]Y.Fujimoto,Hou Defu,Phys.Lett.,B335（1994）87.[10]A.Irback et al.,Nucl.Phys.,B363（1991）34.

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Hou Defu and Li Jiarong. On the Next to Leading Order Debye Screening Mass in QGP[J]. Chinese Physics C, 1996, 20(6): 533-537.

Hou Defu and Li Jiarong. On the Next to Leading Order Debye Screening Mass in QGP[J]. Chinese Physics C, 1996, 20(6): 533-537. shu

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Received: 1900-01-01
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

On the Next to Leading Order Debye Screening Mass in QGP

Hou Defu^,
Li Jiarong

Corresponding author:Hou Defu,

Institute of Particls Physics,Hua-Zhong Normal University,Wuhan 430070

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1996-06-05

Abstract:The next to leading order Debye screening mass in QGP is calculated by taking into accout the damping rate of gluons in the formalism of real time finite temperature QCD,and the infrared singularity in naive calculation is cured without adding to the nonperturbative magnetic screening mass as the cutoff.In addition,the result is shown to be postive and gauge-independent,and is compared with the lattice simulation result.