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A lattice study of the masses of singlet 0++ mesons

Harte, A.; McNeile, C.; Michael, C. and Pickavance, J. (2006) A lattice study of the masses of singlet 0++ mesons. Physical Review D, 74 . Article Number: 114504. ISSN 1550-2368 (online); 1550-7998 (print)

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Official URL: http://link.aps.org/abstract/PRD/v74/e114504

Abstract

We compute the masses of the flavour singlet 0++ mesons using (n_f=2) unquenched lattice QCD with the Iwasaki and Wilson gauge actions. Both fermionic and glueball interpolating operators are used to create the states. The mass of the lightest 0++ meson is suppressed relative to the mass of the 0++ glueball in quenched QCD at an equivalent lattice spacing. We discuss two possible physical reasons for this.

Item Type:Article
Additional Information:LTH 712. arXiv Number: arXiv:hep-lat/0608026v1. 9 pages. Published 8 December 2006. Issue: December 2006.
Uncontrolled Keywords:GAUGE-THEORY; ANISOTROPIC LATTICES; HADRON SPECTROSCOPY; GLUEBALL SPECTRUM; SCALAR GLUEBALL; SU(3); SIMULATIONS; QCD; TRANSITION; PARTICLES
Subjects:Q Science > QC Physics
Departments, Research Centres and Related Units:Academic Faculties, Institutes and Research Centres > Faculty of Science > Department of Mathematical Sciences
DOI:10.1103/PhysRevD.74.114504
Publisher's Statement:©2006 The American Physical Society
Related URLs:
Refereed:Yes
Status:Published
ID Code:100
Deposited On:10 Oct 2007 11:57
Last Modified:20 May 2011 19:36

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