Proposal for generalised Supersymmetry Les Houches Accord for see-saw models and PDG numbering scheme

TL;DR

This paper proposes extensions to the SUSY Les Houches Accord and PDG numbering scheme to comprehensively include various see-saw models and particle properties, facilitating standardized communication in supersymmetry research.

Contribution

It introduces a unified framework for see-saw models and a generalized PDG scheme, enhancing the existing SLHA standards for supersymmetry model descriptions.

Findings

Extended SLHA to include all main see-saw types

Generalized PDG numbering scheme for particle properties

Facilitates standardized model communication

Abstract

The SUSY Les Houches Accord (SLHA) 2 extended the first SLHA to include various generalisations of the Minimal Supersymmetric Standard Model (MSSM) as well as its simplest next-to-minimal version. Here, we propose further extensions to it, to include the most general and well-established see-saw descriptions (types I/II/III, inverse, and linear) in both an effective and a simple gauged extension of the MSSM framework. In addition, we generalise the PDG numbering scheme to reflect the properties of the particles.