Including R-parity violation in the numerical computation of the spectrum of the minimal supersymmetric standard model: SOFTSUSY

TL;DR

This paper extends the SOFTSUSY program to include R-parity violating effects in the minimal supersymmetric standard model, enabling more comprehensive spectrum calculations with user-defined boundary conditions.

Contribution

It introduces a new R-parity violating mode in SOFTSUSY, detailing the implementation, approximations, and conventions for spectrum computation with R-parity violation.

Findings

Successful implementation of R-parity violation in SOFTSUSY

Numerical solution of RGEs with R-parity violating boundary conditions

Manual detailing the new mode and its computational approach

Abstract

Current publicly available computer programs calculate the spectrum and couplings of the minimal supersymmetric standard model under the assumption of R-parity conservation. Here, we describe an extension to the SOFTSUSY program which includes R-parity violating effects. The user provides a theoretical boundary condition upon the high-scale supersymmetry breaking R-parity violating couplings. Successful radiative electroweak symmetry breaking, electroweak and CKM matrix data are used as weak-scale boundary conditions. The renormalisation group equations are solved numerically between the weak scale and a high energy scale using a nested iterative algorithm. This paper serves as a manual to the R-parity violating mode of the program, detailing the approximations and conventions used.