Proposal for generalised Supersymmetry Les Houches Accord for see-saw   models and PDG numbering scheme
  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. 
L. Basso, A. Belyaev, D. Chowdhury, M. Hirsch, S. Khalil, S. Moretti,   B. O'Leary, W. Porod, F. Staub
hep-ph