Three-body decays of sleptons with general flavor violation and left-right mixing

被引：9

作者：

Feng, Jonathan L. ^{[1
]}

Galon, Iftah ^{[2
]}

Sanford, David ^{[1
]}

Shadmi, Yael ^{[2
]}

Yu, Felix ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

来源：

PHYSICAL REVIEW D | 2009年 / 79卷 / 11期

基金：

以色列科学基金会;

关键词：

flavour model; sparticles; spontaneous symmetry breaking; supersymmetry;

D O I：

10.1103/PhysRevD.79.116009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We determine the widths of three-body decays of sleptons, l approximate to(-)-> l approximate to(+/-)l(-)l(-/+), l approximate to(-)nu nu, l approximate to(-)qq, in the presence of arbitrary slepton flavor violation and left-right mixing. These decays are important in scenarios in which the lightest supersymmetric particle is the gravitino, a generic possibility in models with gauge- and gravity-mediated supersymmetry breaking. Three-body decays have been discussed previously, assuming flavor conservation and left-right mixing in only the stau sector. Flavor violation and general left-right mixing open up many new decay channels, which provide new avenues for precision mass measurements and may play an essential role in solving the standard model flavor problem. We present results for toy models with two-generation mixing, and discuss the implementation of these results in spice, a program that simplifies collider event simulations of flavor-violating supersymmetric models.

引用

页数：15

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