LEADING-ORDER QCD CORRECTIONS TO B-]S-GAMMA AND B-]SG DECAYS IN 3 REGULARIZATION SCHEMES

被引：130

作者：

CIUCHINI, M

FRANCO, E

REINA, L

SILVESTRINI, L

机构：

[1] UNIV ROMA LA SAPIENZA,DIPARTIMENTO FIS,I-00185 ROME,ITALY

[2] UNIV LIBRE BRUXELLES,SERV PHYS THEOR,B-1050 BRUSSELS,BELGIUM

[3] INFN,I-00185 ROME,ITALY

来源：

NUCLEAR PHYSICS B | 1994年 / 421卷 / 01期

关键词：

D O I：

10.1016/0550-3213(94)90223-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss in detail the calculation of the leading-order QCD corrections to the effective hamiltonian which governs b --> sgamma and b --> sg transitions in three different regularization schemes (HV, NDR and DRED). We show that intermediate stages of the calculation do depend on the regularization, but the same scheme independent coefficients can be obtained in all the considered schemes. A detailed discussion of the results already present in the literature is also given.

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页码：41 / 64

页数：24

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