Chemical Potential Dependence of Two-Quark Condensates

Chin. Phys. Lett.

2006, Vol. 23

Issue (12): 3234-3237 DOI:

Original Articles

Chemical Potential Dependence of Two-Quark Condensates

SUN Wei-Min^1,2;ZONG Hong-Shi^1,2,3;WANG Fan^1,2

¹Department of Physics, Nanjing University, Nanjing 210093 ²Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093 ³CCAST (World Laboratory), PO Box 8730, Beijing 100080

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SUN Wei-Min, ZONG Hong-Shi, WANG Fan 2006 Chin. Phys. Lett. 23 3234-3237

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Abstract By adopting the background field method, the response of the dressed quark propagator to the presence of finite chemical potential is analysed up to the second order. From this, we obtain a model-independent formula for the chemical potential dependence (up to the second order) of the in-medium two-quark condensate and show by both Lorentz covariance arguments and explicit calculations that the O(μ) contribution to the in-medium two-quark condensate vanishes identically.

Keywords: 24. 85. +p 11. 10. Wx 12. 39. Ba 14. 20. Dh

Published: 01 December 2006

PACS:	24. 85. +p
	11. 10. Wx
	12. 39. Ba
	14. 20. Dh

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2006/V23/I12/03234

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