SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry

TL;DR

SuperIso v3.0 is a comprehensive public software tool that calculates various flavor physics observables within the Standard Model, 2HDM, MSSM, and NMSSM, including recent NNLO corrections and the muon g-2.

Contribution

It introduces an updated version of SuperIso with expanded observables, NNLO SM contributions, and support for multiple supersymmetric models using SLHA input files.

Findings

Includes new flavor observables like B_s -> mu+ mu- and B -> D tau nu_tau

Calculates B -> X_s gamma with NNLO SM contributions

Supports nine different theoretical models and uses SLHA files for input

Abstract

We describe SuperIso v3.0 which is a public program for evaluation of flavor physics observables in the Standard Model (SM), general two-Higgs-doublet model (2HDM), minimal supersymmetric Standard Model (MSSM) and next to minimal supersymmetric Standard Model (NMSSM). SuperIso v3.0, in addition to the branching ratio of B -> X_s gamma and the isospin asymmetry of B -> K* gamma, incorporates other flavor observables such as the branching ratio of B_s -> mu+ mu-, the branching ratio of B -> tau nu_tau, the branching ratio of B -> D tau nu_tau, the branching ratio of K -> mu nu_mu and the branching ratios of D_s -> tau nu_tau and D_s -> mu nu_mu. The calculation of the branching ratio of B -> X_s gamma is also improved, as it includes NNLO Standard Model contributions. The program also computes the muon anomalous magnetic moment (g-2). Nine sample models are included in the package, namely SM, 2HDM, and mSUGRA, NUHM, AMSB and GMSB for the MSSM, and CNMSSM, NGMSB and NNUHM for the NMSSM. SuperIso uses a SUSY Les Houches Accord file (SLHA1 or SLHA2) as input, which can be either generated automatically by the program via a call to external spectrum calculators, or provided by the user. The calculation of the observables is detailed in the Appendices, where a suggestion for the allowed intervals for each observable is also provided.