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Number of results

Journal

2008 | 6 | 1 | 116-121

Article title

Meson loop effect on high density chiral phase transition

Content

Title variants

Languages of publication

EN

Abstracts

EN
We test the stability of the mean field solution in the Nambu-Jona-Lasinio model in a semi-quantitative manner. For stable solutions with respect to both the σ and π directions, we investigate effects of the mesonic loop corrections of 1/N
c, which correspond to the next-to-leading order in the 1/N
c expansion, on the high density chiral phase transition. The corrections weaken the first order phase transition and shift the critical chemical potential to a lower value. At N
c = 3, however, instability of the mean field effective potential prevents us from determining the minimum of the corrected one.

Publisher

Journal

Year

Volume

6

Issue

1

Pages

116-121

Physical description

Dates

published
1 - 3 - 2008
online
26 - 3 - 2008

Contributors

  • Department of Physics, Graduate School of Sciences, Kyushu University, Fukuoka, 812-8581, Japan
author
  • Department of Physics, Graduate School of Sciences, Kyushu University, Fukuoka, 812-8581, Japan
author
  • Department of Physics, Saga University, Saga, 840-8502, Japan
  • Department of Physics, Graduate School of Sciences, Kyushu University, Fukuoka, 812-8581, Japan

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-008-0006-4
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