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Quark-Number Susceptibility at Finite Chemical Potential and Zero Temperature |
| HE Deng-Ke1;JIANG Yu1;FENG Hong-Tao1;SUN Wei-Min1,2;ZONG Hong-Shi1,2 |
| 1Department of Physics, Nanjing University, Nanjing 2100932Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093 |
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| Cite this article: |
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HE Deng-Ke, JIANG Yu, FENG Hong-Tao et al 2008 Chin. Phys. Lett. 25 440-443 |
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Abstract We give a direct method for calculating the quark-number susceptibility at finite chemical potential and zero temperature. In this approach the quark-number susceptibility is totally determined by G[μ](p) (the dressed quark propagator at finite chemical potential μ). By applying the general result in our previous study [Phys. Rev. C 71(2005)015205, 034901, 73 (2006) 016004 ] G[μ](p) is calculated from the model quark propagator proposed by Pagels and Stokar [Phys. Rev. D 20(1979)2947]. The full analytic expression of the
quark-number susceptibility at finite μ and zero T is obtained.
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| Keywords:
12.38.Aw
12.38.Lg
12.39.-x
24.85.+p
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Received: 26 November 2007
Published: 30 January 2008
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| PACS: |
12.38.Aw
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(General properties of QCD (dynamics, confinement, etc.))
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12.38.Lg
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(Other nonperturbative calculations)
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12.39.-x
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(Phenomenological quark models)
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24.85.+p
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(Quarks, gluons, and QCD in nuclear reactions)
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