期刊
PHYSICAL REVIEW D
卷 82, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.034501
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资金
- SCIDAC
- Science and Technology Facilities Council [ST/G00062X/1, ST/F007086/1] Funding Source: researchfish
- STFC [ST/F007086/1, ST/G00062X/1] Funding Source: UKRI
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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