Screening masses in thermal and dense medium

TL;DR

This paper investigates how screening masses of hadronic states vary with temperature and chemical potential in a lattice QCD framework, revealing state-dependent dissolving temperatures and enhanced survivals at finite chemical potentials.

Contribution

It introduces a normalization method using the lowest Matsubara frequency to characterize hadron dissolution and provides new insights into the effects of chemical potential on screening masses.

Findings

Screening masses increase with temperature.

Chemical potential enhances screening masses in deconfinement.

Different hadronic states dissolve at different temperatures.

Abstract

Screening masses of different hadronic states are studied in thermal and dense medium on lattice. It has been found that screening masses increase with the temperature. In deconfinement phase, chemical potential enhances the screening masses. We use the normalization with respect to lowest Matsubara frequency to characterize dissolving of hadronic bound states at high temperatures. It has been found that different hadronic states have different dissolving temperatures and their survivals are considerably improved at finite chemical potentials.