LEPTONIC DECAY CONSTANTS OF D-S, AND B-S, MESONS FROM QCD SUM-RULES

被引：14
|
作者：
DOMINGUEZ, CA
PAVER, N
机构：
[1] UNIV TRIESTE,DIPARTIMENTO FIS TEOR,TRIESTE,ITALY
[2] IST NAZL FIS NUCL,TRIESTE,ITALY
来源：
PHYSICS LETTERS B | 1993年 / 318卷 / 04期
关键词：
D O I：
10.1016/0370-2693(93)90465-T
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The leptonic decay constants of D-s and B-s mesons are determined in the framework of relativistic Hilbert moments and Laplace transform QCD sum rules. When normalized to the corresponding sum rules for f(D) and f(B), we obtain the stable results: f(Ds)/f(D) = 1.21 +/- 0.06, and f(Bs)/f(B) = 1.22 +/- 0.02, essentially independent of the type of sum rule and of the value of the heavy quark mass.
引用
收藏
页码：629 / 634
页数：6
相关论文
共 50 条
  • [31] B and Bs decay constants from moments of finite energy sum rules in QCD
    F. Bodí-Esteban
    J. Bordes
    J. Peñarrocha
    The European Physical Journal C - Particles and Fields, 2004, 38 : 277 - 281
  • [32] B and Bs decay constants from moments of finite energy sum rules in QCD
    Bodi-Esteban, F
    Bordes, J
    Peñarrocha, J
    EUROPEAN PHYSICAL JOURNAL C, 2004, 38 (03): : 277 - 281
  • [33] B meson decay constants fBc, fBs and fB from QCD sum rules
    Baker, M. J.
    Bordes, J.
    Dominguez, C. A.
    Penarrocha, J.
    Schilcher, K.
    JOURNAL OF HIGH ENERGY PHYSICS, 2014, (07):
  • [34] FUNDAMENTAL PARAMETERS FROM QCD SUM-RULES - S-WAVE CHARMONIUM
    MARROW, J
    SHAW, G
    ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1986, 33 (02): : 237 - 242
  • [35] MOMENTS DISTRIBUTIONS OF THE MESONS WAVE-FUNCTIONS FROM QCD SPECTRAL SUM-RULES
    NARISON, S
    PHYSICS LETTERS B, 1989, 224 (1-2) : 184 - 188
  • [36] PRECISION DETERMINATION OF ALPHA(S) AND M(B) FROM QCD SUM-RULES FOR B(B)OVER-BAR
    VOLOSHIN, MB
    INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 1995, 10 (19): : 2865 - 2880
  • [37] DETERMINATION OF THE AXIAL DECAY CONSTANT OF THE BC MESON FROM QCD SUM-RULES
    KISELEV, VV
    TKABLADZE, AV
    SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1989, 50 (06): : 1063 - 1064
  • [38] RADIATIVE B(C)ASTERISK-]B(C)GAMMA DECAY IN QCD SUM-RULES
    ALIEV, TM
    ILTAN, E
    PAK, NK
    PHYSICS LETTERS B, 1994, 329 (01) : 123 - 128
  • [39] Heavy-meson decay constants from QCD sum rules
    Lucha, Wolfgang
    Melikhov, Dmitri
    Simula, Silvano
    QCD AT WORK 2010: INTERNATIONAL WORKSHOP ON QUANTUM CHROMODYNAMICS: THEORY AND EXPERIMENT BEPPE NARDULLI MEMORIAL WORKSHOP, 2010, 1317 : 310 - +
  • [40] c,b quark masses and fD(s), fB(s) decay constants from pseudoscalar sum rules in full QCD to order αs2
    Narison, S
    PHYSICS LETTERS B, 2001, 520 (1-2) : 115 - 123
12345