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arXiv · 2112.01599

Bottomonium spectral widths at nonzero temperature using maximum likelihood

Thomas Spriggs·Gert Aarts·Chris Allton·Timothy Burns·Benjamin Jäger·Seyong Kim·Maria Paola Lombardo·Sam Offler·Ben Page·Sinéad M. Ryan·Jon-Ivar Skullerud
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Abstract

We present progress results from the Fastsum collaboration's programme to determine the spectrum of the bottomonium system as a function of temperature using a variety of approaches. In these proceedings, the Maximum Likelihood approach is used with an Ansatz comprising of a Gaussian spectral function for the ground state. Fastsum anisotropic lattices with 2+1 dynamical quark flavours were used with temperatures ranging from 47 to 375 MeV.

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Thomas Spriggs, Gert Aarts, Chris Allton, Timothy Burns, Benjamin Jäger, Seyong Kim, Maria Paola Lombardo, Sam Offler, Ben Page, Sinéad M. Ryan, Jon-Ivar Skullerud. 2021-12-02. Bottomonium spectral widths at nonzero temperature using maximum likelihood. https://arxiv.org/abs/2112.01599

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