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arXiv · 1109.1229

Chiral QCD sum rules for open charm mesons

Thomas Hilger·Burkhard Kampfer·Stefan Leupold
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Abstract

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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Thomas Hilger, Burkhard Kampfer, Stefan Leupold. 2011-09-06. Chiral QCD sum rules for open charm mesons. https://doi.org/10.1103/physrevc.84.045202

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