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arxiv: 1903.11006 · v1 · pith:QKCJBW5Knew · submitted 2019-03-26 · ✦ hep-lat · hep-ph

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

classification ✦ hep-lat hep-ph
keywords spectralanisotropiccharmcorrelatorsfunctionslatticelightmesons
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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.

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