Full 1-loop calculation of BR(Bs,d0→ℓℓ) in models beyond the MSSM with SARAH and SPheno

2012/12/31 by H. Dreiner, Herbi K. Dreiner, K. Nickel +4 · 14 citations
Physics and Astronomy · #Algorithm #Byte #Computer science #Fortran #High-Energy Particle Collisions Research #Identifier #OS X #Particle physics theoretical and experimental studies #Programming language #Quantum Chromodynamics and Particle Interactions #Software #Subroutine #hep-ph

paper · pdf · doi:10.1016/j.cpc.2013.06.021

published in Computer Physics Communications 184(11), 2604-2617 (Elsevier BV) · v3: fixed title v2: extended discussion of input parameters and support of FLHA; new appendix about massless limits of loop functions. Matches version accepted for publication by CPC

arxiv created 2013/06/26 · openalex publication_date 2013/07/10 · arxiv updated 2013/08/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We present the possibility of calculating the quark flavor changing neutral current decays B_s⁰→ ℓ ℓ and B_d⁰→ ℓ ℓ 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.

Citations

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