Chiral QCD sum rules for open charm mesons

Details Chiral QCD sum rules for open charm mesons Chiral QCD sum rules for open charm mesons

2011-09-06

arxiv.org/abs/1109.1229v1

Phys.Rev.C84:045202, 2011

Physics

Nuclear Physics

Nuclear Theory

24 pages, 4 figures

Scientific paper

10.1103/PhysRevC.84.045202

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 non-degeneracy of chiral partners in 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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