arXiv:1208.1858·v2·High Energy Physics — Lattice
Towards the glueball spectrum from unquenched lattice QCD
E. Gregory🇨🇾 · A. Irving🇬🇧 · B. Lucini🇬🇧 · C. McNeile🇩🇪 · A. Rago🇬🇧 · C. Richards🇬🇧 · E. Rinaldi🇬🇧
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.
Comments: 19 pages, 4 tables and 8 figures. One figure added. Now matches the published version