A simple phenomenological parametrization of supersymmetry without R-parity

被引：52

作者：

Bisset, M ^{[1
]}

Kong, OCW ^{[1
]}

Macesanu, C ^{[1
]}

Orr, LH ^{[1
]}

机构：

[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

来源：

PHYSICS LETTERS B | 1998年 / 430卷 / 3-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(98)00533-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a parametrization of the supersymmetric standard model without R-parity that permits efficient phenomenological analyses of the full model without a priori assumptions. Under the parametrization, which is characterized by a single vacuum expectation value for the scalar components of the Y = -1/2 superfields, the expressions for tree-level mass matrices an quite simple. They do not involve the trilinear R-parity violating couplings; however, the bilinear mu(i) terms do enter and cannot be set to zero without additional assumptions. We set up a framework for doing phenomenology and show some illustrative results for fermion mass matrices and related bounds on parameters. We find in particular that large values of tan beta can suppress R-parity violating effects, substantially weakening experimental constraints. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：274 / 280

页数：7

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