Programs in Physics & Physical Chemistry
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|Manuscript Title: SusyBSG: a fortran code for BR[B → Xsγ] in the MSSM with Minimal Flavor Violation|
|Authors: G. Degrassi, P. Gambino, P. Slavich|
|Program title: SusyBSG|
|Catalogue identifier: AEBM_v1_0|
Distribution format: tar.gz
|Journal reference: Comput. Phys. Commun. 179(2008)759|
|Programming language: Fortran.|
|Computer: All computers with a Fortran compiler.|
|Operating system: Linux.|
|Keywords: Supersymmetry, B physics, rare decays.|
|PACS: 12.60.Jv, 13.20He.|
Nature of problem:
Predicting the branching ratio for the decay B → Xsγ in the MSSM with Minimal Flavor Violation.
We take into account all the available NLO contributions, including the two-loop gluino contributions to the Wilson coefficients computed in ref. . The relation between the Wilson coefficients and the branching ratio for B → Xsγ is computed along the lines of ref. . The SUSY input parameters can be read from a spectrum file in the SLHA format.
The results apply only to the case of Minimal Flavor Violation.
Numerical instabilities may arise for special combinations of the input parameters. They can usually be avoided by compiling the code in quadruple precision.
Approximately 10 ms in double precision, 0.5 s in quadruple precision (on a Pentium D 3.40-GHz).
|||G. Degrassi, P. Gambino and P. Slavich, Phys. Lett. B 635 (2006) 335 (arXiv:hep-ph/0601135).|
|||P. Gambino and M. Misiak, Nucl. Phys. B 611 (2001) 338 (hep-ph/0104034)|
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