RENORMALIZATION OF BILINEARS IN NONRELATIVISTIC QCD

被引:14
作者
DAVIES, CTH [1 ]
THACKER, BA [1 ]
机构
[1] OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210
来源
PHYSICAL REVIEW D | 1993年 / 48卷 / 03期
关键词
D O I
10.1103/PhysRevD.48.1329
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We calculate the O(alpha(s)) corrections to bilinear lattice vertex operators in nonrelativistic QCD (NRQCD) on the lattice. We use the lowest-order (in 1/M) NRQCD action which includes the time derivative and kinetic energy terms, but we ignore spin effects. We give the correction required to convert a lattice calculation of the pseudoscalar heavy-light meson decay constant into a value appropriate for the continuum. For the light fermion we have used ordinary Wilson fermions, improved Wilson fermions, and naive fermions. We also give the correction required for a calculation of the vector heavy-heavy meson leptonic width. This is unfortunately large.
引用
收藏
页码:1329 / 1336
页数:8
相关论文
共 19 条
[1]   MESON HYPERFINE SPLITTINGS AND LEPTONIC DECAYS [J].
BARBIERI, R ;
GATTO, R ;
KOGERLER, R ;
KUNSZT, Z .
PHYSICS LETTERS B, 1975, 57 (05) :455-459
[2]  
DAVIES C, UNPUB
[3]   HEAVY-QUARK RENORMALIZATION PARAMETERS IN NONRELATIVISTIC QCD [J].
DAVIES, CTH ;
THACKER, BA .
PHYSICAL REVIEW D, 1992, 45 (03) :915-923
[4]   AN EFFECTIVE FIELD-THEORY FOR THE CALCULATION OF MATRIX-ELEMENTS INVOLVING HEAVY QUARKS [J].
EICHTEN, E ;
HILL, B .
PHYSICS LETTERS B, 1990, 234 (04) :511-516
[5]  
EICHTEN E, 1991, NUCL PHYS B S, V20
[6]  
EICHTEN E, 1990, PHYS LETT B, V240, P194
[7]  
GOLDEN M, FERMILABPUB90216T RE
[8]   SOME PREDICTIONS FOR AN IMPROVED FERMION ACTION ON THE LATTICE [J].
HAMBER, HW ;
WU, CM .
PHYSICS LETTERS B, 1983, 133 (05) :351-358
[9]   THE AXIAL-VECTOR CURRENT ANOMALY AND THE MESON DECAY CONSTANTS FOR THE IMPROVED LATTICE FERMION ACTION [J].
HAMBER, HW ;
WU, CM .
PHYSICS LETTERS B, 1984, 136 (04) :255-264
[10]  
HASHIMOTO S, HUPD9120 REP