QCD sum rules for D mesons in dense and hot nuclear matter

TL;DR

This paper explores how open charm mesons in nuclear matter can signal chiral symmetry restoration, using QCD sum rules to analyze their in-medium modifications and the role of gluon condensates near the critical temperature.

Contribution

It introduces Weinberg type sum rules for charming chiral partners and discusses in-medium modifications of open-charm mesons within the QCD sum rule framework.

Findings

Enhanced sensitivity of open charm mesons to chiral condensate in nuclear matter

Distinct in-medium modifications of open-charm mesons discussed

Impact of gluon condensates near Tc analyzed

Abstract

Open charm mesons (pseudo-scalar and scalar as well as axial-vector and vector) propagating or resting in nuclear matter display an enhanced sensitivity to the chiral condensate. This offers new prospects to seek for signals of chiral restoration, in particular in p-A and p-bar-A reactions as envisaged in first-round experiments by the CBM and PANDA collaborations at FAIR. Weinberg type sum rules for charming chiral partners are presented, and the distinct in-medium modifications of open-charm mesons are discussed. We also address the gluon condensates near Tc and their impact on QCD sum rules.