Analysis of the heavy mesons in the nuclear matter with the QCD sum rules

TL;DR

This paper uses QCD sum rules to analyze how nuclear matter affects heavy mesons, calculating shifts in their properties and exploring the potential for bound states with nucleons.

Contribution

It systematically incorporates higher-order condensate contributions and studies multiple meson types, providing new insights into their in-medium modifications and interactions.

Findings

Mass and decay constant shifts of heavy mesons in nuclear matter

Qualitative indication of possible heavy-meson-nucleon bound states

Enhanced understanding of heavy meson interactions in dense nuclear environments

Abstract

In this article, I calculate the contributions of the nuclear matter induced condensates up to dimension 5, take into account the next-to-leading order contributions of the nuclear matter induced quark condensate, study the properties of the scalar, pseudoscalar, vector and axial-vector heavy mesons in the nuclear matter with the QCD sum rules in a systematic way, and obtain the shifts of the masses and decay constants. Furthermore, I study the heavy-meson-nucleon scattering lengths as a byproduct, and obtain the conclusion qualitatively about the possible existence of heavy-meson-nucleon bound states.