RESULTS FOR F(B) AND F(D) AT BETA=6.3

被引：24
作者：
BERNARD, C
LABRENZ, J
SONI, A
机构：
[1] WASHINGTON UNIV, DEPT PHYS, ST LOUIS, MO 63130 USA
[2] UNIV WASHINGTON, DEPT PHYS, SEATTLE, WA 98195 USA
[3] BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA
[4] BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA
来源：
NUCLEAR PHYSICS B | 1993年
关键词：
D O I：
10.1016/0920-5632(93)90251-Z
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 have computed the decay constants for the B and D mesons, using quenched lattices at beta = 6.3, by interpolating between the static approximation of Eichten and the conventional (''heavy'' Wilson fermion) method. A more careful treatment of the static result using better sources with longer time-displacements and a modification to the Wilson quark normalization to correct approximately for lattice effects in the large-am regime have led to the elimination of the large discrepancy between the two methods which had been previously observed. We report final results, with estimates of various systematic errors.
引用
收藏
页码：465 / 468
页数：4
相关论文
共 11 条
  • [1] MESON SPECTROSCOPY AND DECAY CONSTANTS WITH WILSON FERMIONS AT BETA = 6.4
    ABADA, A
    ALLTON, CR
    BOUCAUD, P
    CARPENTER, DB
    CRISAFULLI, M
    GALAND, J
    GUSKEN, S
    MARTINELLI, G
    PENE, O
    SACHRAJDA, CT
    SARNO, R
    SCHILLING, K
    SOMMER, R
    [J]. NUCLEAR PHYSICS B, 1992, 376 (01) : 172 - 198
  • [2] A LATTICE COMPUTATION OF THE DECAY CONSTANT OF THE BETA-MESON
    ALLTON, CR
    SACHRAJDA, CT
    LUBICZ, V
    MAIANI, L
    MARTINELLI, G
    [J]. NUCLEAR PHYSICS B, 1991, 349 (02) : 598 - 616
  • [3] Bernard C., 1992, Nuclear Physics B, Proceedings Supplements, V26B, P384, DOI 10.1016/0920-5632(92)90283-X
  • [4] Bernard C., 1991, Nuclear Physics B, Proceedings Supplements, V20, P488, DOI 10.1016/0920-5632(91)90963-F
  • [5] B-MESON DECAY CONSTANT ON THE LATTICE AND RENORMALIZATION
    BOUCAUD, P
    LIN, CL
    PENE, O
    [J]. PHYSICAL REVIEW D, 1989, 40 (05): : 1529 - 1545
  • [6] RENORMALIZATION OF HEAVY LIGHT BILINEARS AND FB FOR WILSON FERMIONS
    EICHTEN, E
    HILL, B
    [J]. PHYSICS LETTERS B, 1990, 240 (1-2) : 193 - 199
  • [7] Eichten E., 1988, Nuclear Physics B, Proceedings Supplements, V4, P170, DOI 10.1016/0920-5632(88)90097-7
  • [8] KRONFELD A, 1993, NUCL PHYS B S, V30
  • [9] Kronfeld A., COMMUNICATION
  • [10] Lepage G. P., 1992, Nuclear Physics B, Proceedings Supplements, V26B, P45, DOI 10.1016/0920-5632(92)90228-K
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