Two-loop hybrid renormalization of local dimension-4 heavy-light operators

被引：5

作者：

Amoros, G ^{[1
]}

Neubert, M

机构：

[1] Univ Valencia, Dept Fis Teor, E-46100 Valencia, Spain

[2] Univ Valencia, IFIC, Ctr Mixte, CSIC, E-46100 Valencia, Spain

[3] CERN, Div Theory, CH-1211 Geneva, Switzerland

来源：

PHYSICS LETTERS B | 1998年 / 420卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(97)01513-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The renormalization of local dimension-4 operators containing a heavy and a light quark field at scales below the heavy-quark mass is discussed, using the formalism of the heavy-quark effective theory. The anomalous dimensions of these operators and their mixing are calculated to two-loop order. Some phenomenological applications are briefly discussed. (C) 1998 Elsevier Science B.V.

引用

收藏

页码：340 / 349

页数：10

相关论文

共 27 条

[1] Two-loop anomalous dimension of the chromo-magnetic moment of a heavy quark [J].

Amoros, G ;

Beneke, M ;

Neubert, M .

PHYSICS LETTERS B, 1997, 401 (1-2) :81-90

[2]

AMOROS G, UNPUB

[3] GAUGE-INVARIANT ON-SHELL Z2 IN QED, QCD AND THE EFFECTIVE FIELD-THEORY OF A STATIC QUARK [J].

BROADHURST, DJ ;

GRAY, N ;

SCHILCHER, K .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 52 (01) :111-122

[4] 2-LOOP RENORMALIZATION OF THE EFFECTIVE FIELD-THEORY OF A STATIC QUARK [J].

BROADHURST, DJ ;

GROZIN, AG .

PHYSICS LETTERS B, 1991, 267 (01) :105-110

[5] DECAY-B-]PI-L-NU IN HEAVY-QUARK EFFECTIVE THEORY [J].

BURDMAN, G ;

LIGETI, Z ;

NEUBERT, M ;

NIR, Y .

PHYSICAL REVIEW D, 1994, 49 (05) :2331-2345

[6] ON THE REPARAMETERIZATION INVARIANCE IN HEAVY-QUARK EFFECTIVE THEORY [J].

CHEN, YQ .

PHYSICS LETTERS B, 1993, 317 (03) :421-427

[7] INTEGRATION BY PARTS - THE ALGORITHM TO CALCULATE BETA-FUNCTIONS IN 4-LOOPS [J].

CHETYRKIN, KG ;

TKACHOV, FV .

NUCLEAR PHYSICS B, 1981, 192 (01) :159-204

[8] INFRARED R-OPERATION AND ULTRAVIOLET COUNTERTERMS IN THE MS-SCHEME [J].

CHETYRKIN, KG ;

TKACHOV, FV .

PHYSICS LETTERS B, 1982, 114 (05) :340-344

[9] R-STAR-OPERATION CORRECTED [J].

CHETYRKIN, KG ;

SMIRNOV, VA .

PHYSICS LETTERS B, 1984, 144 (5-6) :419-424

[10]

Egorian E., 1979, Teor. Mat. Fiz., V41, P26