Effective description of squark interactions

Details Effective description of squark interactions Effective description of squark interactions

2008-12-05

arxiv.org/abs/0812.1114v2

JHEP 0904:016,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 25 pages, 6 figures, 1 Table. Comments added, typos corrected. Version to be published in JHEP

Scientific paper

10.1088/1126-6708/2009/04/016

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.

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