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    The bottomonium spectrum at finite temperature from Nf = 2 + 1 lattice QCD


    Aarts, G. and Allton, C. and Harris, T. and Kim, S. and Lombardo, M. P. and Ryan, S. M. and Skullerud, Jon-Ivar (2014) The bottomonium spectrum at finite temperature from Nf = 2 + 1 lattice QCD. Journal of High Energy Physics, 1407. ISSN 1029-8479

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    Abstract

    We present results on the bottomonium spectrum at temperatures above and below the deconfinement crossover temperature, Tc, from dynamical lattice QCD simulations. The heavy quark is treated with a non-relativistic effective field theory on the lattice and serves as a probe of the hot medium. Ensembles with a finer spatial lattice spacing and a greater range of temperatures below Tc than those previously employed by this collaboration are used. In addition, there are Nf = 2 + 1 flavours of Wilson clover quark in the sea with M� � 400MeV and we perform a more careful tuning of the bottom quark mass in this work. We calculate the spectral functions of S and P wave bottomonium states using the maximum entropy method and confirm earlier findings on the survival of the ground state S wave states up to at least 2Tc and the immediate dissociation of the P wave states above Tc.

    Item Type: Article
    Keywords: Lattice QCD; Thermal Field Theory;
    Academic Unit: Faculty of Science and Engineering > Mathematical Physics
    Item ID: 5481
    Identification Number: https://doi.org/10.1007/JHEP07(2014)097
    Depositing User: Dr. Jonivar Skullerud
    Date Deposited: 13 Oct 2014 13:49
    Journal or Publication Title: Journal of High Energy Physics
    Publisher: SISSA by Springer
    Refereed: Yes
    Funders: SCOAP3
    URI:

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