Effective squark/chargino/neutralino couplings: MadGraph implementation
High Energy Physics - Phenomenology
2015-06-11 v3
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.
Keywords
Cite
@article{arxiv.1209.5214,
title = {Effective squark/chargino/neutralino couplings: MadGraph implementation},
author = {Arian Abrahantes and Jaume Guasch and Siannah Penaranda and Raul Sanchez-Florit},
journal= {arXiv preprint arXiv:1209.5214},
year = {2015}
}
Comments
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