QCD CORRECTIONS TO THE WEAK RADIATIVE BBAR-MESON DECAY

被引：105

作者：

CELLA, G

CURCI, G

RICCIARDI, G

VICERE, A

机构：

[1] SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY

[2] IST NAZL FIS NUCL,I-56100 PISA,ITALY

来源：

PHYSICS LETTERS B | 1990年 / 248卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(90)90036-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The B→Xsγ decay, which is sensitive to the top-quark mass, has become now particularly interesting as we expect a t-mass greater than 80 GeV. The QCD corrections play a relevant role, enhancing the GIM suppressed vertex: their computation presents many technical difficulties, which have led to different results in the previous literature. We have performed the calculation off-shell, in all gauges, in the leading logarithmic approximation; we confirm the strong enhancement of the QCD corrected branching ratios. © 1990.

引用

页码：181 / 187

页数：7