Full 1-loop calculation of BR$(B_{s,d}^0\to \ell \bar \ell)$ in models beyond the MSSM with SARAH and SPheno

H. Dreiner; K. Nickel; W. Porod; F. Staub

doi:10.1016/j.cpc.2013.06.021

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arXiv · 1212.5074

Full 1-loop calculation of BR$(B_{s,d}^0\to \ell \bar \ell)$ in models beyond the MSSM with SARAH and SPheno

H. Dreiner·K. Nickel·W. Porod·F. Staub

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Abstract

We present the possibility of calculating the quark flavor changing neutral current decays $B_{s}^0\to \ell \bar \ell$ and $B_{d}^0\to \ell \bar \ell$ for a large variety of supersymmetric models. For this purpose, the complete one-loop calculation has been implemented in a generic form in the Mathematica package SARAH. This information is used by SARAH to generate Fortran source code for SPheno for a numerical evaluation of these processes in a given model. We comment also on the possibility to use this setup for non-supersymmetric models.

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H. Dreiner, K. Nickel, W. Porod, F. Staub. 2013-06-26. Full 1-loop calculation of BR$(B_{s,d}^0\to \ell \bar \ell)$ in models beyond the MSSM with SARAH and SPheno. https://doi.org/10.1016/j.cpc.2013.06.021

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