Meson masses and decay constants from unquenched lattice QCD

Jansen, K., McNeile, C., Michael, C. and Urbach, C. (2009) Meson masses and decay constants from unquenched lattice QCD. Physical Review D, 80(5), (doi: 10.1103/PhysRevD.80.054510)

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Publisher's URL: http://dx.doi.org/10.1103/PhysRevD.80.054510

Abstract

We report results for the masses of the flavor nonsinglet light 0++, 1--, and 1+- mesons from unquenched lattice QCD at two lattice spacings. The twisted mass formalism was used with two flavors of sea quarks. For the 0++ and 1+- mesons we look for the effect of decays on the mass dependence. For the light vector mesons we study the chiral extrapolations of the mass. We report results for the leptonic and transverse decay constants of the ρ meson. We test the mass dependence of the KSRF relations, between the mass, leptonic coupling constant, and strong coupling of the rho meson.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McNeile, Dr Craig
Authors: Jansen, K., McNeile, C., Michael, C., and Urbach, C.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:1550-7998
ISSN (Online):1089-4918

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
481951Investigations in Quantum Chromodynamics and Physics Beyond the Standard ModelChristine DaviesScience & Technologies Facilities Council (STFC)ST/G00059X/1Physics and Astronomy