Thermal modification of open heavy-flavor mesons from an effective hadronic theory

TL;DR

This paper presents a self-consistent theoretical framework for studying how hot mesonic matter affects heavy mesons, incorporating symmetries and thermal corrections to analyze spectral functions and transport properties.

Contribution

It introduces a novel approach combining chiral and heavy-quark symmetries with thermal corrections to study heavy meson modifications in hot matter.

Findings

Thermal spectral functions of heavy mesons are computed.

Implications for excited mesonic states are analyzed.

Transport coefficients for D mesons are estimated.

Abstract

We have developed a self-consistent theoretical approach to study the modification of the properties of heavy mesons in hot mesonic matter which takes into account chiral and heavy-quark spin-flavor symmetries. The heavy-light meson-meson unitarized scattering amplitudes in coupled channels incorporate thermal corrections by using the imaginary-time formalism, as well as the dressing of the heavy mesons with the self-energies. We report our results for the ground-state thermal spectral functions and the implications for the excited mesonic states generated dynamically in the heavy-light molecular model. We have applied these to the calculation of meson Euclidean correlators and transport coefficients for D mesons and summarize here our findings.