Two-loop SUSY QCD corrections to the chargino masses in the MSSM

TL;DR

This paper computes two-loop SUSY QCD corrections to chargino masses in the MSSM, providing improved precision for mass predictions with a new computational tool.

Contribution

It introduces the first detailed calculation of two-loop SQCD corrections to chargino masses in the MSSM with complex parameters and offers a software for mass computation.

Findings

Corrections of a few tenths of a percent on chargino masses.

Numerical analysis at a specific parameter point.

A publicly available program for mass calculations.

Abstract

We have calculated the two-loop strong interaction corrections to the chargino pole masses in the DRbar'-scheme in the Minimal Supersymmetric Standard Model (MSSM) with complex parameters. We have performed a detailed numerical analysis for a particular point in the parameter space and found corrections of a few tenths of a percent. We provide a computer program which calculates chargino and neutralino masses with complex parameters including the one-loop corrections and all two-loop SQCD effects.