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Precision Upsilon Spectroscopy from Nonrelativistic Lattice QCD

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arxiv hep-lat/9406017 v1 pith:SQM3K3VF submitted 1994-06-25 hep-lat

C.T.H. Davies , K. Hornbostel , A. Langnau , G.P. Lepage , A. Lidsey , J. Shigemitsu , J. Sloan This is my paper · ORCID
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keywords upsilonlatticemasscenternonrelativisticagreementaimedapproach
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The spectrum of the Upsilon system is investigated using the Nonrelativistic Lattice QCD approach to heavy quarks and ignoring light quark vacuum polarization. We find good agreement with experiment for the Upsilon(1S), Upsilon(2S), Upsilon(3S) and for the center of mass and fine structure of the chi_b states. The lattice calculations predict b-bbar D-states with center of mass at (10.20 +/- 0.07 +/- 0.03)GeV. Fitting procedures aimed at extracting both ground and excited state energies are developed. We calculate a nonperturbative dispersion mass for the Upsilon(1S) and compare with tadpole-improved lattice perturbation theory.

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Cited by 3 Pith papers

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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.

  2. Charmonium properties at high temperatures from lattice QCD

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    Lattice QCD calculations indicate charmonium states persist below the open-charm threshold up to 305 MeV but develop temperature-dependent thermal widths that increase with state size.

  3. Lattice perspectives on doubly heavy tetraquarks

    hep-lat 2025-02 accept novelty 1.0 of 10

    A review of lattice QCD results concludes that doubly heavy tetraquarks Tbb(ud/us) are firmly predicted as bound states, Tcc appears as a virtual state at nonphysical masses, and Tbc is under active study.

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