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Free Meson Spectral Functions on the Lattice

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arxiv hep-lat/0309191 v1 pith:SNWWS7AX submitted 2003-09-30 hep-lat

S. Stickan , F. Karsch , E. Laermann , P. Petreczky This is my paper · ORCID
classification hep-lat
keywords functionsspectralcalculationfreelatticemesonanalyticcompare
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We present results from an analytic calculation of thermal meson spectral functions in the infinite temperature (free field) limit. We compare spectral functions for various lattice fermion formulations used at present in studies of in-medium properties of hadrons based on the maximum entropy method (MEM). In particular, we will present a new calculation of spectral functions performed with extended quark sources.

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  1. In-medium bottomonium properties from lattice NRQCD calculations with extended meson operators

    hep-lat 2025-01 conditional novelty 6.0 of 10

    Bottomonium masses do not shift in the quark-gluon plasma up to 250 MeV, but thermal widths are nonzero and highly sensitive to the assumed spectral function shape.

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