QCD corrections to flavor-changing neutral currents in the supersymmetric standard model

被引：116

作者：

Bagger, JA

Matchev, KT

Zhang, RJ

机构：

[1] Department of Physics and Astronomy, Johns Hopkins University, Baltimore

[2] Theory Group, Fermi Natl. Accelerator Laboratory, Batavia, IL 60510

[3] Department of Physics, University of California, Davis

[4] Department of Physics, University of Wisconsin, Madison

来源：

PHYSICS LETTERS B | 1997年 / 412卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0370-2693(97)00920-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the leading QCD corrections to K-K mixing in the supersymmetric standard model with general soft supersymmetry-breaking parameters. We construct the Delta S = 2 effective Lagrangian for three hierarchies of supersymmetric particle masses, namely, when the gluino mass is comparable to, much greater than, or much less than the masses of the first two generation squarks. We find that the QCD corrections tighten the Limits on squark mass splittings by more than a factor of two. (C) 1997 Elsevier Science B.V.

引用

页码：77 / 85

页数：9

共 37 条

[21] Flavour changing neutral currents and CP violating processes in generalized supersymmetric theories [J].