Effective squark/chargino/neutralino couplings: MadGraph implementation

Abstract

We have included the effective description of squark interactions with charginos/neutralinos in the MadGraph MSSM model. This effective description includes the effective Yukawa couplings, and another logarithmic term which encodes the supersymmetry-breaking. We have performed an extensive test of our implementation analyzing the results of the partial decay widths of squarks into charginos and neutralinos obtained by using FeynArts/FormCalc programs and the new model file in MadGraph. We present results for the cross-section of top-squark production decaying into charginos and neutralinos.

LaTeX, 33 pages, 9 figures, 2 tables. Version to appear in Eur.Phys.J.C. Comments added. References added. Section 5.2 shortened. Results unchanged

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Cited by in corpus (1)

• Top-quark Polarization and Asymmetries at the LHC in the Effective Description of Squark Interactions