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Towards the glueball spectrum from unquenched lattice QCD

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Abstract

We use a variational technique to study heavy glueballs on gauge configurations generated with 2+1 flavours of ASQTAD improved staggered fermions. The variational technique includes glueball scattering states. The measurements were made using 2150 configurations at 0.092 fm with a pion mass of 360 MeV. We report masses for 10 glueball states. We discuss the prospects for unquenched lattice QCD calculations of the oddballs.

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Authors and Affiliations

  1. Department of Physics, University of Cyprus, P.O. Box 20357, 1678, Nicosia, Cyprus

    E. Gregory

  2. Theoretical Physics Division, Dept. of Mathematical Sciences, University of Liverpool, Liverpool, L69 7ZL, U.K.

    A. Irving & C. Richards

  3. Department of Physics, College of Science, Swansea University, Singleton Park, Swansea, SA2 8PP, U.K.

    B. Lucini

  4. Bergische Universität Wuppertal, Gaussstr. 20, D-42119, Wuppertal, Germany

    E. Gregory & C. McNeile

  5. School of Computing & Mathematics, University of Plymouth, Plymouth, PL4 8AA, U.K.

    A. Rago

  6. SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, U.K.

    E. Rinaldi

  7. Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University, Nagoya, 464-8602, Japan

    E. Rinaldi

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  1. E. Gregory
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  2. A. Irving
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  3. B. Lucini
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  4. C. McNeile
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  5. A. Rago
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  6. C. Richards
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  7. E. Rinaldi
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Correspondence to E. Rinaldi.

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ArXiv ePrint: 1208.1858

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Gregory, E., Irving, A., Lucini, B. et al. Towards the glueball spectrum from unquenched lattice QCD. J. High Energ. Phys. 2012, 170 (2012). https://doi.org/10.1007/JHEP10(2012)170

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