Effective description of squark interactions
arXiv:0812.1114 · doi:10.1088/1126-6708/2009/04/016
Abstract
We propose an effective description of squark interactions with charginos/neutralinos. We recompute the strong corrections to squark partial decay widths, and compare the full one-loop computation with the effective description. The effective description includes the effective Yukawa couplings, and another logarithmic term which encodes the supersymmetry-breaking. The proposed effective couplings reproduce correctly the radiative-corrected partial decay widths of the squark decays into charginos and neutralinos in all relevant regions of the parameter space.
LaTeX, 25 pages, 6 figures, 1 Table. Comments added, typos corrected. Version to be published in JHEP