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Decay constants of P-wave heavy-light mesons from unquenched lattice QCD

Herdoiza, G.; McNeile, C. and Michael, C. (2006) Decay constants of P-wave heavy-light mesons from unquenched lattice QCD. Physical Review D, 74 . Article Number: 014510. ISSN 1550-2368 (online); 1550-7998 (print)

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Official URL: http://link.aps.org/abstract/PRD/v74/e014510

Cited 4 times in WoS

Abstract

We review some decays that require knowledge of the decay constants of $0^{+}$ heavy-light mesons. We compute the decay constants of P-wave heavy-light mesons from unquenched lattice QCD, with two degenerate flavours of sea quarks, at a single lattice spacing. The lightest sea quark mass used in the calculation is a third of the strange quark mass. For the charm-strange meson we obtain the decay constant: $f_{D_{s 0^+}} = 340(110)$ MeV using our normalisation conventions. We obtain the $f_{P_s}^{static}$ (static-strange P-wave) decay constant as $302(39)$ MeV.

Item Type:Article
Additional Information:LTH 696. arXiv Number: arXiv:hep-lat/0604001v2. Additional citation information: PHYSICAL REVIEW D 74, 014510 (2006); 1550-7998/2006/74(1)/014510(6). 6 Pages. Published 18 July 2006. Issue: July 2006.
Uncontrolled Keywords:FERMION; LATTICE FIELD THEORY; GAUGE FIELD THEORY; SU(3); MESON; DECAY CONSTANT; quark; heavy; numerical calculations; Monte Carlo;
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.74.014510
Publisher's Statement:©2006 The American Physical Society.
Related URLs:
Refereed:Yes
Status:Published
ID Code:372
Deposited On:27 Oct 2008 11:08
Last Modified:20 May 2011 16:50

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