FLAVOR-CHANGING NEUTRAL CURRENTS WITH HEAVY QUARKS

被引：6

作者：

BARROSO, A

机构：

[1] Departamento de Física, Universidade de Lisboa, Campo Grande 1700 Lisboa

来源：

PHYSICAL REVIEW D | 1990年 / 42卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.42.901

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The flavor-changing amplitudes qiqj and gqiqj are computed without approximations. The results for on-shell quarks and for the gluon and photon vertices are compared with the ones derived using the usual approximation of neglecting the external quark masses. For the bs g () transitions this approximation is shown to be very good. The discrepancy with another calculation is discussed and the situation is clarified. © 1990 The American Physical Society.

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页码：901 / 904

页数：4

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