Scalar glueball and meson spectroscopy in unquenched lattice QCD with improved staggered quarks

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We present results of an exploratory study of singlet scalar states in unquenched QCD using both glueball and meson operators. Results for non-singlet non-strange scalar mesons are also presented. We use Asqtad improved staggered fermions and gauge configurations generated by the MILC collaboration at lattice spacings of .12 and .09 fm. In this formulation, the glueball mass is not significantly different from the quenched value at finite lattice spacing. Significant taste violations are present in the scalar sector. At light quark masses, decay channels complicate the mass determinations. There is some evidence that the non-strange singlet meson lies below the non-singlet meson.
Lattice 2005 (hadron spectrum and quark masses), 6 pages, 4 figures

Keywords

High Energy Physics - Lattice

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/103363

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-lat/0510066
 http://arxiv.org/abs/hep-lat/0510066
 PoS LAT2005 (2005) 027

Collections

arXiv