RADIATIVE B-MESON DECAY IN SUPERSYMMETRIC MODELS

被引：102

作者：

OSHIMO, N

机构：

[1] Grupo Teórico das Altas Energias, 1699 Lisbon Codex, Av. Prof. Gama Pinto

来源：

NUCLEAR PHYSICS B | 1993年 / 404卷 / 1-2期

关键词：

D O I：

10.1016/0550-3213(93)90471-Z

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：

The rare decay b --> sgamma is discussed in supersymmetric standard models based on grand unification and N = 1 supergravity. The interaction lagrangians which induce the generation changings for the quarks are given in explicit forms. It is shown that the one-loop diagrams with the charginos generally make a larger contribution to the decay rate than those with the gluinos and with the neutralinos. The inclusive rate for the radiative B-meson decay is enhanced or reduced from the standard model prediction in sizable ranges of the parameter space.

引用

页码：20 / 41

页数：22

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