Glueball mass measurements from improved staggered fermion simulations - INSPIRE

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Glueball mass measurements from improved staggered fermion simulations

UKQCD

Collaboration

•

Christopher M. Richards
(
- Liverpool U., Dept. Math.
)

May, 2010

22 pages

Published in:

Phys.Rev.D 82 (2010) 034501

e-Print:

1005.2473 [hep-lat]

DOI:

10.1103/PhysRevD.82.034501

Report number:

LTH-876

Experiments:

LATTICE-UKQCD

View in:

ADS Abstract Service

reference search69 citations

Citations per year

Abstract: (arXiv)

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.

Note:

22 pages, 19 figures and 8 tables, minor additions on mixing post-referee

12.38.Gc
11.15.Ha
14.40.Be
fermion: staggered
glueball: mass spectrum
flavor: 3
pi: mass
numerical calculations: Monte Carlo
glueball: scalar
glueball: pseudoscalar

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