SUB-LEADING LOGARITHMIC MASS-DEPENDENCE IN HEAVY-MESON FORM-FACTORS

被引：117

作者：

JI, XD ^{[1
]}

MUSOLF, MJ ^{[1
]}

机构：

[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICS LETTERS B | 1991年 / 257卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(91)91916-J

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the two-loop anomalous dimension and the first-order coefficient function of weak-interaction currents in the heavy-quark effective field theory. Together with the two-loop QCD beta-function, these quantities form the complete sub-leading logarithmic corrections to the mass-factorization of weak form factors.

引用

收藏

页码：409 / 413

页数：5

相关论文

共 15 条

[1]

CASWELL WE, 1973, PHYS REV LETT, V33, P224

[2] SPIN-DEPENDENT FORCES IN QUANTUM CHROMODYNAMICS [J].

EICHTEN, E ;

FEINBERG, F .

PHYSICAL REVIEW D, 1981, 23 (11) :2724-2744

[3] 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

[4] SPIN-DEPENDENT FORCES IN HEAVY-QUARK SYSTEMS [J].

EICHTEN, E ;

FEINBERG, FL .

PHYSICAL REVIEW LETTERS, 1979, 43 (17) :1205-1206

[5]

FALK A, HUTP90A044 PREPR

[6] HEAVY MESON FORM-FACTORS FROM QCD [J].

FALK, AF ;

GEORGI, H ;

GRINSTEIN, B ;

WISE, MB .

NUCLEAR PHYSICS B, 1990, 343 (01) :1-13

[7] POWER CORRECTIONS TO LEADING LOGS AND THEIR APPLICATION TO HEAVY QUARK DECAYS [J].

FALK, AF ;

GRINSTEIN, B .

PHYSICS LETTERS B, 1990, 247 (2-3) :406-411

[8] AN EFFECTIVE FIELD-THEORY FOR HEAVY QUARKS AT LOW ENERGIES [J].

GEORGI, H .

PHYSICS LETTERS B, 1990, 240 (3-4) :447-450

[9]

Georgi H., 1984, WEAK INTERACTIONS MO

[10] WEAK DECAYS OF HEAVY MESONS IN THE STATIC QUARK APPROXIMATION [J].

ISGUR, N ;

WISE, MB .

PHYSICS LETTERS B, 1989, 232 (01) :113-117