# Spectral properties of light and charm mesons from $N_f=2+1$ anisotropic lattice QCD

## TL;DR

This study uses anisotropic lattice QCD with 2+1 flavors to analyze the spectral functions of light and charm mesons across a range of temperatures, providing insights into meson behavior near the deconfinement transition.

## Contribution

It introduces a detailed lattice QCD analysis of meson spectral functions at finite temperature using two Bayesian reconstruction methods, including the BR method, for the first time.

## Key findings

- Spectral functions show modifications across the deconfinement transition.
- Comparison of reconstructed and zero-temperature correlators validates the methods.
- Results provide benchmarks for meson behavior in hot QCD matter.

## Abstract

We compute temporal correlators and spectral functions for light, open charm and charmonium mesons in the pseudoscalar and vector channel for a range of temperatures below and above the deconfinement transition. The study is carried out using anisotropic lattice QCD with 2+1 dynamical flavours, $a_s=0.123\,$fm and $a_s/a_\tau=3.5$. The high-temperature results are benchmarked by comparing them to reconstructed correlators obtained by direct summation of the zero temperature correlator. We use two Bayesian methods to reconstruct the spectral functions: the maximum entropy method and the more recent BR method.