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arXiv · 1005.2473

Glueball mass measurements from improved staggered fermion simulations

Christopher M. Richards·Alan C. Irving·Eric B. Gregory·Craig McNeile
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Abstract

We present the first 2+1 flavour spectrum measurements of glueball states using high statistics simulations with improved staggered fermions. We find a spectrum consistent with quenched measurements of scalar, pseudoscalar andtensor glueball states. The measurements were made using 5000 configurations at a lattice spacing of 0.123 fm and pion mass of 280 MeV and 3000 configurations at 0.092 fm with a pion mass of 360 MeV. We see some evidence of coupling to 2 pion states. We compare our results with the experimental glueball candidate spectrum as well as quenched glueball estimates.

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Christopher M. Richards, Alan C. Irving, Eric B. Gregory, Craig McNeile. 2010-07-30. Glueball mass measurements from improved staggered fermion simulations. https://doi.org/10.1103/physrevd.82.034501

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