A Poissible Method to Determine the Order of QGP Phase Transitions

YAN WenBiao; YANG ChunBin; CAI Xu

Chinese Physics C> 2000, Vol. 24> Issue(9) : 852-857

A Poissible Method to Determine the Order of QGP Phase Transitions

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

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Abstract：
In the framework of the extended Ginzburg-Landau model,the dependence of the multiplicity difference correlators F_q on phase space intervals δ is different in first-and second-order QGP phase transitions.Once ln F_q are expressed as functions of δ^1/3 and data-fitting by polynomials,one can determine the order of the phase transition by comparing the signs of the coefficients of the first power from fitting and from theoretical calculations. One virtue of this method is the independence of the unknown temperature parameter,and one can get the same information about the phase transition from one and higher dimensional analyses of the experimental data.

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[1]

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YAN WenBiao, YANG ChunBin and CAI Xu. A Poissible Method to Determine the Order of QGP Phase Transitions[J]. Chinese Physics C, 2000, 24(9): 852-857.

YAN WenBiao, YANG ChunBin and CAI Xu. A Poissible Method to Determine the Order of QGP Phase Transitions[J]. Chinese Physics C, 2000, 24(9): 852-857. shu

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Received: 1999-07-05
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

A Poissible Method to Determine the Order of QGP Phase Transitions

Corresponding author: YAN WenBiao,

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

Received Date: 1999-07-05

Accepted Date: 1900-01-01

Available Online: 2000-09-05

Abstract: In the framework of the extended Ginzburg-Landau model,the dependence of the multiplicity difference correlators F_q on phase space intervals δ is different in first-and second-order QGP phase transitions.Once ln F_q are expressed as functions of δ^1/3 and data-fitting by polynomials,one can determine the order of the phase transition by comparing the signs of the coefficients of the first power from fitting and from theoretical calculations. One virtue of this method is the independence of the unknown temperature parameter,and one can get the same information about the phase transition from one and higher dimensional analyses of the experimental data.

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A Poissible Method to Determine the Order of QGP Phase Transitions

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