Supersymmetric SU(5) grand unification for a post Higgs boson era

Miller, D. J.; Morais, A.

doi:10.1007/jhep10(2013)226

Cited by 8 publications

(16 citation statements)

References 134 publications

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“…Thus, a detailed analysis of the Renormalization Group (RG) is required in order to evolve the couplings of the theory from the high scale down to the low scale. Some recent phenomenological work in light of the recently discovered Higgs boson and dark matter can be found in [33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Two-loop stability of a complex singlet extended standard model

et al. 2015

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Motivated by the dark matter and the baryon asymmetry problems, we analyse a complex singlet extension of the Standard Model (SM) with a Z 2 symmetry (which provides a dark matter candidate). After a detailed two-loop calculation of the renormalization group equations for the new scalar sector, we study the radiative stability of the model up to a high energy scale (with the constraint that the 126 GeV Higgs boson found at the LHC is in the spectrum) and find it requires the existence of a new scalar state mixing with the Higgs with a mass larger than 140 GeV. This bound is not very sensitive to the cut-off scale as long as the latter is larger than 10 10 GeV. We then include all experimental and observational constraints/measurements from collider data, dark matter direct detection experiments and from the Planck satellite and in addition force stability at least up to the GUT scale, to find that the lower bound is raised to about 170 GeV, while the dark matter particle must be heavier than about 50 GeV.

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Section: Introductionmentioning

confidence: 99%

Two-loop stability of a complex singlet extended standard model

et al. 2015

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“…Using the electroweak scale outputs of SOFTSUSY as inputs for micrOMEGAS, we generate predictions for the remaining experimental observables, such as the dark matter relic density, and derive a probability P tot for each scenario (again using the procedure described in [9]). We require P tot > 10 −3 , reducing the number of viable scenarios to 2151, corresponding to 0.2% of the initial attempts, of which 458 (0.05% of the initial attempts) have the preferred relic density.…”

Section: Universal Gaugino Massesmentioning

confidence: 99%

“…In a recent publication [9], we investigated supersymmetric Grand Unified Theories (GUTs) with an SU(5) gauge group. We considered models with both universal and nonuniversal gaugino masses and confronted our spectra with low energy constraints from the newly discovered Higgs boson [1][2][3][4] and the dark matter (DM) relic density [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…These include two orbifold inspired models and a model with a gauge-kinetic function embedded in a 200 of SU (5). In this paper we extend our analysis to supersymmetric Grand Unified models based on the SO(10) gauge symmetry, following the same philosophy as in [9]. However we will develop our studies further for non-universal gauginos by considering combinations of hidden sector fields in distinct SO(10) representations.…”

Section: Introductionmentioning

confidence: 99%

“…For the GG embedding, the fields are identified in the same way as we did for SU(5) in Ref. [9] with the addition of a right-handed neutrino field as (1, 1) 0 . The SM hypercharge generator and its orthogonal partner is then given by,…”

Section: Introductionmentioning

confidence: 99%

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Supersymmetric SO(10) grand unification at the LHC and beyond

Miller

Morais

2014

J. High Energ. Phys.

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We study models of supersymmetric grand unification based on the SO(10) gauge group. We investigate scenarios of non-universal gaugino masses including models containing a mixture of two representations of hidden sector chiral superfields. We analyse the effect of excluding µ from the fine-tuning measure, and confront the results with low energy constraints, including the Higgs boson mass, dark matter relic density and supersymmetry bounds. We also determine high scale Yukawa coupling ratios and confront the results with theoretical predictions. Finally, we present two additional benchmarks that should be explored at the LHC and future colliders.

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Non-universal gaugino mass GUT models in the light of dark matter and LHC constraints

Chakrabortty

Mohanty

Rao

2014

J. High Energ. Phys.

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We perform a comprehensive study of SU(5), SO(10) and E(6) supersymmetric GUT models where the gaugino masses are generated through the F-term breaking vacuum expectation values of the non-singlet scalar fields. In these models the gauginos are nonuniversal at the GUT scale unlike in the mSUGRA scenario. We discuss the properties of the LSP which is stable and a viable candidate for cold dark matter. We look for the GUT scale parameter space that leads to the the lightest SM like Higgs mass in the range of 122-127 GeV compatible with the observations at ATLAS and CMS, the relic density in the allowed range of WMAP-PLANCK and compatible with other constraints from colliders and direct detection experiments. We scan universal scalar (m G 0 ), trilinear coupling A 0 and SU(3) C gaugino mass (M G 3 ) as the independent free parameters for these models. Based on the gaugino mass ratios at the GUT scale, we classify 25 SUSY GUT models and find that of these only 13 models satisfy the dark matter and collider constraints. Out of these 13 models there is only one model where there is a sizeable SUSY contribution to muon (g−2).

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Supersymmetric SU(5) grand unification for a post Higgs boson era

Cited by 8 publications

References 134 publications

Two-loop stability of a complex singlet extended standard model

Two-loop stability of a complex singlet extended standard model

Supersymmetric SO(10) grand unification at the LHC and beyond

Non-universal gaugino mass GUT models in the light of dark matter and LHC constraints

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