期刊
PHYSICAL REVIEW C
卷 84, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.84.045202
关键词
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资金
- GSI-FE
- BMBF [06DR9059]
QCD sum rules for chiral partners in the open-charm meson sector are presented at nonzero baryon net density or temperature. We focus on the differences between pseudo-scalar and scalar as well as vector and axial-vector D mesons and derive the corresponding Weinberg-type sum rules. This allows for the identification of such QCD condensates which drive the nondegeneracy of chiral partners in the lowest order of the strong coupling alpha(s) and which, therefore, may serve as order parameters for chiral restoration (or elements thereof).
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