Chiral QCD sum rules for open charm mesons

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).

24 pages, 4 figures

References in corpus (6)

• Gravity & Hydrodynamics: Lectures on the fluid-gravity correspondence
• QCD sum rules for D and B mesons in nuclear matter
• In-medium chiral condensate beyond linear density approximation
• Information on the structure of the a1 from tau decay
• Four-quark condensates and chiral symmetry restoration in a resonance gas model
• Selfconsistent approximations, symmetries and choice of representation

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• Masses and Decay widths of Charmonium states in presence of strong magnetic fields
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• Charmonium decay widths in magnetized matter
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• Correlations between light and heavy flavors near the chiral crossover
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• Chiral symmetry aspects in the open charm sector
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