ON THE DETERMINATION OF THE LEPTONIC DECAY CONSTANT F(BC) FROM QCD SUM-RULES

被引:40
作者
CHABAB, M [1 ]
机构
[1] UNIV HASSAN 2,FAC SCI I,PHYS THEOR LAB,CASABLANCA,MOROCCO
关键词
D O I
10.1016/0370-2693(94)90093-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The leptonic decay constant and the mass of the B(c)-meson are estimated using two versions of QCD sum rules. The predictions take into account the uncertainties due to the variations of the continuum threshold within the stability regions. Our optimal results are: f(B(c)) = 300 +/- 65 MeV and M(B(c)) = 6.25 +/- 0.20 GeV.
引用
收藏
页码:205 / 211
页数:7
相关论文
共 50 条
[41]   QCD SUM-RULES FOR LIGHT MESONS [J].
NARISON, S .
NUCLEAR PHYSICS B, 1981, 182 (1-2) :59-76
[42]   QCD SUM-RULES AND CHIRAL LOGARITHMS [J].
LEE, SH ;
CHOE, S ;
COHEN, TD ;
GRIEGEL, DK .
PHYSICS LETTERS B, 1995, 348 (3-4) :263-269
[43]   HOW LARGE IS FB FROM QCD SUM-RULES [J].
DOMINGUEZ, CA ;
PAVER, N .
PHYSICS LETTERS B, 1991, 269 (1-2) :169-174
[44]   HERMAPHRODITE MESONS AND QCD SUM-RULES [J].
LATORRE, JI ;
NARISON, S ;
PASCUAL, P ;
TARRACH, R .
PHYSICS LETTERS B, 1984, 147 (1-3) :169-174
[45]   QCD SUM-RULES AT FINITE TEMPERATURE [J].
DOMINGUEZ, CA ;
LOEWE, M .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 51 (01) :69-72
[46]   A CLASS OF MODIFIED SUM-RULES IN QCD [J].
FISCHER, J ;
KOLAR, P .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (03) :375-384
[47]   QCD SUM-RULES AND HYBRID MESONS [J].
GOVAERTS, J ;
DEVIRON, F ;
GUSBIN, D ;
WEYERS, J .
NUCLEAR PHYSICS B, 1984, 248 (01) :1-18
[48]   SUM-RULES AND EXCLUSIVE PROCESSES IN QCD [J].
RADYUSHKIN, AV .
ACTA PHYSICA POLONICA B, 1984, 15 (05) :403-417
[49]   QCD SUM-RULES WITH FINITE MASSES [J].
MEYER-HERMANN, M ;
SCHAFER, A ;
GREINER, W .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1995, 351 (03) :345-351
[50]   QCD SUM-RULES AND TENSOR MESONS [J].
ALIEV, TM ;
SHIFMAN, MA .
SOVIET JOURNAL OF NUCLEAR PHYSICS-USSR, 1982, 36 (06) :891-896