Glueball mass measurements from improved staggered fermion simulations
We present the first 2+1 flavor spectrum measurements of glueball states using high statistics simulations with improved staggered fermions. We find a spectrum consistent with quenched measurements of scalar, pseudoscalar, and tensor glueball states. The measurements were made using 5000 configurati...
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Veröffentlicht in: | Physical review. D, Particles and fields Particles and fields, 2010-08, Vol.82 (3), Article 034501 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | We present the first 2+1 flavor spectrum measurements of glueball states using high statistics simulations with improved staggered fermions. We find a spectrum consistent with quenched measurements of scalar, pseudoscalar, and tensor 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{pi} states. We compare our results with the experimental glueball candidate spectrum as well as quenched glueball estimates. |
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ISSN: | 1550-7998 0556-2821 1550-2368 1089-4918 |
DOI: | 10.1103/PhysRevD.82.034501 |