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Title: The super-GUT CMSSM revisited

Journal Article · · European Physical Journal. C, Particles and Fields

Here, we revisit minimal supersymmetric SU(5) grand unification (GUT) models in which the soft supersymmetry-breaking parameters of the minimal supersymmetric Standard Model (MSSM) are universal at some input scale, Min, above the supersymmetric gauge-coupling unification scale, MGUT. As in the constrained MSSM (CMSSM), we assume that the scalar masses and gaugino masses have common values, m0 and m1/2, respectively, at Min, as do the trilinear soft supersymmetry-breaking parameters A0. Going beyond previous studies of such a super-GUT CMSSM scenario, we explore the constraints imposed by the lower limit on the proton lifetime and the LHC measurement of the Higgs mass, mh. We find regions of m0, m1/2 A0 and the parameters of the SU(5) superpotential that are compatible with these and other phenomenological constraints such as the density of cold dark matter, which we assume to be provided by the lightest neutralino. Typically, these allowed regions appear for m0 and m1/2 in the multi-TeV region, for suitable values of the unknown SU(5) GUT-scale phases and superpotential couplings, and with the ratio of supersymmetric Higgs vacuum expectation values tan β≲6.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0011842
OSTI ID:
1330390
Alternate ID(s):
OSTI ID: 1368090
Journal Information:
European Physical Journal. C, Particles and Fields, Journal Name: European Physical Journal. C, Particles and Fields Vol. 76 Journal Issue: 11; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 36 works
Citation information provided by
Web of Science

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