Progress calculating decay constants with NRQCD and AsqTad actions

被引：5

作者：

Wingate, M

Davies, C

Gray, A

Gulez, E

Lepage, GP

Shigemitsu, J

机构：

[1] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA

[2] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[3] Cornell Univ, Lab Elementary Particle Phys, Ithaca, NY 14853 USA

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2004年 / 129卷

关键词：

D O I：

10.1016/j.nuclphysbps.2003.12.147

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We combine a light AsqTad antiquark with a nonrelativistic heavy quark to compute the decay constants of heavy-light pseudoscalar mesons using the ensemble of 3-flavor gauge field configurations generated by the MILC collaboration. Preliminary results for f(Bs) and f(Ds) are given and status of the chiral extrapolation to f(B) is reported. We also touch upon results of the perturbative calculation which matches matrix elements in the effective theory to the full theory at 1-loop order.

引用

页码：325 / 327

页数：3

共 8 条

[1]

AOKI S, ARXIVHEPPH0307039

[2] Chiral corrections and lattice QCD results for fBs/fBd and ΔmBs/ΔmBd [J].

Becirevic, D ;

Fajfer, S ;

Prelovsek, S ;

Zupan, J .

PHYSICS LETTERS B, 2003, 563 (3-4) :150-156

[3] QCD spectrum with three quark flavors [J].

Bernard, C ;

Burch, T ;

Orginos, K ;

Toussaint, D ;

DeGrand, TA ;

DeTar, C ;

Datta, S ;

Gottlieb, S ;

Heller, UM ;

Sugar, R .

PHYSICAL REVIEW D, 2001, 64 (05)

[4]

DAVIES CT, ARXIVHEPLAT0304004

[5]

GRAY AJ, IN PRESS

[6]

GULEZ E, IN PRESS

[7] One-loop matching of lattice and continuum heavy-light axial vector currents using NRQCD [J].

Morningstar, CJ ;

Shigemitsu, J .

PHYSICAL REVIEW D, 1998, 57 (11) :6741-6751

[8] Heavy-light mesons with staggered light quarks [J].

Wingate, M ;

Shigemitsu, J ;

Davies, CTH ;

Lepage, GP ;

Trottier, HD .

PHYSICAL REVIEW D, 2003, 67 (05)

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