Radiative weak annihilation decays

被引：8

作者：

Lebed, RF ^{[1
]}

机构：

[1] Jefferson Lab, Newport News, VA 23606 USA

来源：

PHYSICAL REVIEW D | 2000年 / 61卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.61.033004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A class of meson decay modes sensitive to only one quark topology at leading C-F Order (annihilation of valence quarks through a W) is described. No experimental observations, or even upper limits, have been reported for these decays. This work presents a simpleminded (order-of-magnitude) calculation of their branching fractions, and compares to results of previous calculations where available. Although rare, one of these modes (D-s(+) --> rho(+) gamma) might already be observable at charm experiments; two others (D+ --> K*(+) gamma, B+ --> D-s*(+) gamma) should appear at the B factories, and the rest at hadron colliders.

引用

页数：5

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