Bulk Viscosity of Quark Matter in Magnetic Field

ZHOU Xia; TIAN Hai-Jun; ZHENG Xiao-Ping

Chinese Physics C> 2007, Vol. 31> Issue(1) : 38-42

Bulk Viscosity of Quark Matter in Magnetic Field

Institution of Astrophysics, Huazhong Normal University, Wuhan 430079, China

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Abstract：
The reaction rate of non-leptonic quark weak interaction and the bulk viscosity of quark matter in the magnetic field are investigated. The approximation method for calculating the reaction rate in a weak magnetic field is improved, the results of the reaction rate of non-leptonic process and the bulk viscosity of quark matter are given. It is shown that the relationship between the bulk viscosity and the temperature in the weak magnetic field case is the same as that in the zero magnetic field case, but the magnitude of bulk viscosity is affected by the strength of the magnetic field.

References

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ZHOU Xia, TIAN Hai-Jun and ZHENG Xiao-Ping. Bulk Viscosity of Quark Matter in Magnetic Field[J]. Chinese Physics C, 2007, 31(1): 38-42.

ZHOU Xia, TIAN Hai-Jun and ZHENG Xiao-Ping. Bulk Viscosity of Quark Matter in Magnetic Field[J]. Chinese Physics C, 2007, 31(1): 38-42. shu

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Received: 2006-04-11
Revised: 2006-08-10

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沈阳化工大学材料科学与工程学院沈阳 110142

Bulk Viscosity of Quark Matter in Magnetic Field

Corresponding author: ZHOU Xia,

Institution of Astrophysics, Huazhong Normal University, Wuhan 430079, China

Received Date: 2006-04-11
Accepted Date: 2006-08-10
Available Online: 2007-01-05

Abstract: The reaction rate of non-leptonic quark weak interaction and the bulk viscosity of quark matter in the magnetic field are investigated. The approximation method for calculating the reaction rate in a weak magnetic field is improved, the results of the reaction rate of non-leptonic process and the bulk viscosity of quark matter are given. It is shown that the relationship between the bulk viscosity and the temperature in the weak magnetic field case is the same as that in the zero magnetic field case, but the magnitude of bulk viscosity is affected by the strength of the magnetic field.