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

2019/03/26 by R. P. Quinn, Quinn, Ryan, Jonas Glesaaen +5
Mathematics · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #Stochastic processes and statistical mechanics

paper · pdf · doi:10.48550/arxiv.1903.11006

openalex publication_date 2019/03/26 · openalex created_date 2022/07/13 · openalex updated_date 2026/07/28

Abstract

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

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