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Best fit predictions for flavour violating processes in MSSM constrained by unification

Best fit predictions for flavour violating processes in MSSM constrained by unification
Best fit predictions for flavour violating processes in MSSM constrained by unification
We study the Minimal Supersymmetric Standard Model (MSSM) constrained by unification assuming mSUGRA SUSY breaking. In particular this means that the three gauge couplings are unified at a per cent level, third generation yukawa couplings are unified at a 10 % level, and at the unification scale MU ~ 1016 the SUSY breaking masses of squarks and sleptons are universal up to specific D-term contributions. At MU we also include right-handed neutrinos that are decoupled at their three respective scales. In a top-down global analysis we then find that there are two distinct best fits, primarily distinguished by the masses of the non-Standard Model Higgs states, and compute the predictions for flavour violating processes involving both leptons and quarks. The fit with the light Higgs spectrum is especially interesting with regards to the decay Bs → µ+µ-. We note that the latter results go beyond what is called minimal flavour violation in the MSSM.
1-4
Blazek, T.
301575a4-8f11-4612-b6f2-5d3ff8cc0409
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Parry, J.K
3c2a831e-5a6f-4481-bc05-d9c542f0530a
Blazek, T.
301575a4-8f11-4612-b6f2-5d3ff8cc0409
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Parry, J.K
3c2a831e-5a6f-4481-bc05-d9c542f0530a

Blazek, T., King, S.F. and Parry, J.K (2004) Best fit predictions for flavour violating processes in MSSM constrained by unification. Pre-print, 1-4.

Record type: Article

Abstract

We study the Minimal Supersymmetric Standard Model (MSSM) constrained by unification assuming mSUGRA SUSY breaking. In particular this means that the three gauge couplings are unified at a per cent level, third generation yukawa couplings are unified at a 10 % level, and at the unification scale MU ~ 1016 the SUSY breaking masses of squarks and sleptons are universal up to specific D-term contributions. At MU we also include right-handed neutrinos that are decoupled at their three respective scales. In a top-down global analysis we then find that there are two distinct best fits, primarily distinguished by the masses of the non-Standard Model Higgs states, and compute the predictions for flavour violating processes involving both leptons and quarks. The fit with the light Higgs spectrum is especially interesting with regards to the decay Bs → µ+µ-. We note that the latter results go beyond what is called minimal flavour violation in the MSSM.

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More information

Published date: 9 February 2004
Additional Information: arXiv:hep-ph/0402085v1

Identifiers

Local EPrints ID: 57093
URI: https://eprints.soton.ac.uk/id/eprint/57093
PURE UUID: bbf38d45-b18b-47b2-8ab1-9dd67c98b61b

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Date deposited: 13 Aug 2008
Last modified: 26 Jul 2018 16:30

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