SUSY_FLAVOR v2.5: a computational tool for FCNC and CP-violating processes in the MSSM

Abstract

We present SUSY_FLAVOR version 2.5 - a Fortran 77 program that calculates low-energy flavor observables in the general $R$-parity conserving MSSM. For a set of MSSM parameters as input, the code gives predictions for: 1. Electric dipole moments of the leptons and the neutron. 2. Anomalous magnetic moments (i.e. $g-2$) of the leptons. 3. Radiative lepton decays ($\mu \to e\gamma$ and $\tau \to \mu \gamma ,e\gamma$). 4. Rare Kaon decays ($K_L^0\to {\pi }^0\bar{\nu }\nu$ and $K^{+}\to {\pi }^{+}\bar{\nu }\nu$). 5. Leptonic $B$ decays ($B_{s,d}\to l^{+}{l}^{-}$, $B\to \tau \nu$, $B\to D\tau \nu$ and $B\to D^{\star }\tau \nu$). 6. Radiative $B$ decays ($B\to {\bar{X}}_s\gamma$). 7. Rare decays of top quark to Higgs boson ($t\to ch,uh$). 8. $\Delta F=2$ processes (${\bar{K}}^0-K^0$, $\bar{D}-D$, ${\bar{B}}_d-B_d$ and ${\bar{B}}_s-B_s$ mixing). SUSY_FLAVOR performs the resummation of all chirally enhanced corrections, i.e. takes into account the effects enhanced by $\tan \beta$ and/or large trilinear soft mixing terms to all orders in perturbation theory. All calculations are done using exact diagonalization of the sfermion mass matrices. Comparing to previous versions, in SUSY_FLAVOR v2.5 parameter initialization in SLHA2 format has been significantly generalized and simplified, so that program accepts without modifications most of the output files produced by other codes calculating MSSM spectra and processes. In addition, the routine calculating branching ratios for rare decays of top quark to Higgs boson has been included. The program can be obtained from www.fuw.edu.pl/susy_flavor.

Updated from arXiv:1003.4260 [hep-ph] (SUSY_FLAVOR v1 manual), 61 pages; updated sections on modified user interface and on newly added processes. SUSY_FLAVOR code available at http://www.fuw.edu.pl/susy_flavor

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