SUSY-QCD decays of squarks and gluinos

Abstract

The partial widths are determined for squark decays to gluinos and quarks, and gluino decays to squarks and quarks, respectively. The widths are calculated including one-loop SUSY-QCD corrections. The corrections amount to +30% to +50% for squark decays and −10% to +10% for gluino decays. We have derived the results in the DR and MS renormalization schemes, and we have demonstrated explicitly that the one-loop effective qqg and qq̄ḡ coupling are equal in the limit of exact supersymmetry.