Heavy-quark expansion for D and B mesons in nuclear matter

TL;DR

This paper develops a theoretical framework using an extended heavy-quark expansion to evaluate QCD sum rules for studying medium modifications of D and B mesons in dense nuclear matter, aiding future experimental analyses.

Contribution

It introduces an extended heavy-quark expansion method to handle heavy-light four-quark condensates in QCD sum rules for D and B mesons in nuclear matter.

Findings

Provides a new approach for evaluating heavy-light condensates.

Facilitates theoretical predictions for meson modifications in dense matter.

Supports upcoming experimental investigations at FAIR.

Abstract

The planned experiments at FAIR enable the study of medium modifications of $D$ and $B$ mesons in (dense) nuclear matter. Evaluating QCD sum rules as a theoretical prerequisite for such investigations encounters heavy-light four-quark condensates. We utilize an extended heavy-quark expansion to cope with the condensation of heavy quarks.