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Article
Report number	arXiv:1411.1663 ; CERN-PH-TH-2014-234 ; DAMTP-2014-79 ; DAMTP-2014-79 ; CERN-PH-TH-2014-234
Title	MFV Reductions of MSSM Parameter Space
Author(s)	AbdusSalam, S.S. (INFN, Rome ; ICTP, Trieste) ; Burgess, C.P. (CERN ; McMaster U. ; Perimeter Inst. Theor. Phys.) ; Quevedo, F. (Cambridge U., DAMTP ; ICTP, Trieste)
Publication	2015-02-11
Imprint	21 Nov 2014
Number of pages	20
Note	Comments: 2nd version, minor comments and references added, accepted for publication in JHEP 2nd version, minor comments and references added, accepted for publication in JHEP
In:	JHEP 02 (2015) 073
DOI	10.1007/JHEP02(2015)073
Subject category	Particle Physics - Phenomenology
Abstract	The 100+ free parameters of the minimal supersymmetric standard model (MSSM) make it computationally difficult to compare systematically with data, motivating the study of specific parameter reductions such as the cMSSM and pMSSM. Here we instead study the reductions of parameter space implied by using minimal flavour violation (MFV) to organise the R-parity conserving MSSM, with a view towards systematically building in constraints on flavour-violating physics. Within this framework the space of parameters is reduced by expanding soft supersymmetry-breaking terms in powers of the Cabibbo angle, leading to a 24-, 30- or 42-parameter framework (which we call MSSM-24, MSSM-30, and MSSM-42 respectively), depending on the order kept in the expansion. We provide a Bayesian global fit to data of the MSSM-30 parameter set to show that this is manageable with current tools. We compare the MFV reductions to the 19-parameter pMSSM choice and show that the pMSSM is not contained as a subset. The MSSM-30 analysis favours a relatively lighter TeV-scale pseudoscalar Higgs boson and $\tan \beta \sim 10$ with multi-TeV sparticles.
Copyright/License	publication: © 2015-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³

Corresponding record in: Inspire
Email contact: cliff.burgess@cern.ch