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arXiv · 1209.5214

Effective squark/chargino/neutralino couplings: MadGraph implementation

Arian Abrahantes·Jaume Guasch·Siannah Penaranda·Raul Sanchez-Florit
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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.

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Arian Abrahantes, Jaume Guasch, Siannah Penaranda, Raul Sanchez-Florit. 2013-04-09. Effective squark/chargino/neutralino couplings: MadGraph implementation. https://doi.org/10.1140/epjc%2Fs10052-013-2368-z

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