Chiral symmetry aspects in the open charm sector

TL;DR

This paper explores how chiral symmetry breaking and restoration influence heavy-light mesons in hot or dense media using QCD sum rules and Weinberg sum rules.

Contribution

It applies Weinberg sum rules to heavy-light mesons to study chiral symmetry effects in a nuclear medium, extending previous analyses to the open charm sector.

Findings

Chiral symmetry restoration impacts heavy-light meson properties.

Weinberg sum rules provide insights into chiral partner mesons.

Heavy-light mesons serve as probes for chiral symmetry in nuclear matter.

Abstract

QCD sum rules serve as tools to investigate changing hadronic properties in a hot and/or dense nuclear medium. The role of chiral symmetry breaking and restoration effects in a medium can be addressed also in the heavy-light meson sector. Thus, we consider Weinberg sum rules which refer to chiral partner mesons composed of a light and a heavy quark.