The R-Symmetric Minimal Supersymmetric Standard Model

Author

​Benjamin Fuks

• IPHC Strasbourg / University of Strasbourg
• fuks@…

Description of the model & references

Our MRSSM implementation in FeynRules is general in the sense that it is keeping all the flavour-violating and helicity-mixing terms in the Lagrangian and also all the possible additional CP-violating phases. In order to deal in a transparent way with the more than 100 parameters, our implementation follows a set of conventions derived from those provided by the Supersymmetry Les Houches Accord.

• ​Phys.Rev. D78 (2008) 055010: G.D. Kribs, E. Poppitz, N. Weiner, Flavor in Supersymmetry with an Extended R-symmetry.
• ​Int.J.Mod.Phys. A27 (2012) 1230007: B. Fuks, Beyond the Minimal Supersymmetric Standard Model: from theory to phenomenology.
• ​JHEP 0407 (2004) 36: P. Skands et al, SUSY Les Houches accord: Interfacing SUSY spectrum calculators, decay packages, and event generators .
• ​Comput.Phys.Commun.180 (2009) 8: B. C. Allanach et al, SUSY Les Houches Accord 2.

Model files

• mrssm.fr: MRSSM implementation using the superspace module (compatible with FeynRules 1.6.x)
• spectrum.dat: parameter file to be read, associated to the scenario described in ​Int.J.Mod.Phys. A27 (2012) 1230007.
• MRSSM.nb: Example of a Mathematica® notebook loading the model and the parameters.

Specific instructions

• Only unitarity gauge is supported.
• The flags $CKMDiag and $MNSDiag, being set to True or False, allow for CKM and PMNS matrices different from the identity or not.
• A parameter file must be loaded before running the model, or all the parameters would have a value of -1 (ReadLHAFile[Input->"myfile"]).