Heavy-light decay constants with three dynamical flavors

被引：12

作者：

Bernard, C ^{[1
]}

Burch, T

Datta, S

DeGrand, T

DeTar, C

Gottlieb, S

Heller, UM

Orginos, K

Sugar, R

Toussaint, D

机构：

[1] Washington Univ, Dept Phys, St Louis, MO 63130 USA

[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[3] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[4] Indiana Univ, Dept Phys, Boulder, CO 80309 USA

[5] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[6] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

[7] Florida State Univ, SCRI, Tallahassee, FL 32306 USA

[8] BNL, RIKEN, Res Ctr, Upton, NY 11973 USA

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2002年 / 106卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0920-5632(01)01731-5

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 present preliminary results for the heavy-light leptonic decay constants in the presence of three light dynamical flavors. We generate dynamical configurations with improved staggered and gauge actions and analyze them for heavy-light physics with tadpole improved clover valence quarks. When the scale is set by m(rho), we find an increase of approximate to 23% in f(B) with three dynamical flavors over the quenched case. Discretization errors appear to be small (less than or similar to3%) in the quenched case but have not yet been measured in the dynamical case.

引用

页码：412 / 414

页数：3

共 17 条

[1] LATTICE QCD ON SMALL COMPUTERS
ALFORD, M
DIMM, W
LEPAGE, GP
HOCKNEY, G
MACKENZIE, PB
[J]. PHYSICS LETTERS B, 1995, 361 (1-4) : 87 - 94
[2] Lattice determination of heavy-light decay constants
Bernard, C
DeGrand, T
DeTar, C
Gottlieb, S
Heller, UM
Hetrick, JE
Ishizuka, N
McNeile, C
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (22) : 4812 - 4815
[3] QCD spectrum with three quark flavors
Bernard, C
Burch, T
Orginos, K
Toussaint, D
DeGrand, TA
DeTar, C
Datta, S
Gottlieb, S
Heller, UM
Sugar, R
[J]. PHYSICAL REVIEW D, 2001, 64 (05)
[4] fB for various actions:: Approaching the continuum limit with dynamical fermions
Bernard, C
Datta, S
DeTar, C
Gottlieb, S
Heller, UM
Hetrick, J
McNeile, C
Orginos, K
Sugar, R
Toussaint, D
[J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2001, 94 : 346 - 349
[5] Scaling tests of the improved Kogut-Susskind quark action
Bernard, C
Burch, T
DeGrand, TA
DeTar, C
Gottlieb, S
Heller, UM
Hetrick, JE
Orginos, K
Sugar, B
Toussaint, D
[J]. PHYSICAL REVIEW D, 2000, 61 (11)
[6] Static quark potential in three flavor QCD
Bernard, C
Burch, T
Orginos, K
Toussaint, D
DeGrand, TA
DeTar, C
Gottlieb, S
Heller, UM
Hetrick, JE
Sugar, B
[J]. PHYSICAL REVIEW D, 2000, 62 (03) : 1 - 7
[7] Massive fermions in lattice gauge theory
ElKhadra, AX
Kronfeld, AS
Mackenzie, PB
[J]. PHYSICAL REVIEW D, 1997, 55 (07) : 3933 - 3957
[8] Flavor-symmetry restoration and Symanzik improvement for staggered quarks
Lepage, GP
[J]. PHYSICAL REVIEW D, 1999, 59 (07): : 1 - 4
[9] COMPUTATION OF THE ACTION FOR ON-SHELL IMPROVED LATTICE GAUGE-THEORIES AT WEAK COUPLING
LUSCHER, M
WEISZ, P
[J]. PHYSICS LETTERS B, 1985, 158 (03) : 250 - 254
[10] ON-SHELL IMPROVED LATTICE GAUGE-THEORIES
LUSCHER, M
WEISZ, P
[J]. COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1985, 97 (1-2) : 59 - 77

← 1 2 →