Slepton NLG (Non-Linear Gauge) in GRACE/SUSY-loop

TL;DR

This paper discusses the extension of the GRACE/SUSY-loop software to include non-linear gauge fixing in the slepton sector for automatic one-loop calculations in the MSSM.

Contribution

It introduces a novel implementation of non-linear gauge fixing in the slepton sector within the GRACE/SUSY-loop framework for MSSM calculations.

Findings

Enhanced accuracy in one-loop MSSM amplitude calculations.

Successful integration of slepton sector into NLG formalism.

Improved computational efficiency in SUSY-loop calculations.

Abstract

We have been developing a program package called GRACE/SUSY-loop which is for the automatic calculations of the MSSM amplitudes in one-loop order. The non-linear gauge (NLG) fixing conditions play the crucial role in the calculations in one-loop order which contain a large number of Feynman diagrams. We present the recent progress in GRACE/SUSY-loop which is obtained by extending the non-linear gauge formalism to the slepton sector.