Higgs and non-universal gaugino masses: no SUSY signal expected yet?

Caron, S.; Laamanen, Jari; Niessen, Irene; Strübig, A.

doi:10.1007/jhep06(2012)008

Cited by 12 publications

(3 citation statements)

References 89 publications

(103 reference statements)

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“…[15][16][17][18][19]). Gauginos are embedded in the adjoint representation of the GUT gauge group and their masses may be generated by hidden-sector chiral superfields in the gaugekinetic function developing expectation values.…”

Section: Introductionmentioning

confidence: 99%

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

Miller

Morais

2013

J. High Energ. Phys.

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We investigate models of supersymmetric grand unification based on the gauge group SU (5). We consider models with non-universal gaugino masses and confront them with low energy constraints, including the Higgs boson mass and the Dark Matter relic density. We also discuss fine-tuning and show the effect of not including the µ-parameter into fine tuning determinations. With this relaxation, we find viable scenarios with low fine tuning and study some model choices for gaugino mass ratios. We demonstrate that some orbifold inspired models may provide low fine-tuning and the preferred relic abundance of Dark Matter while evading all experimental constraints. We present benchmarks that should be explored at the LHC and future colliders.

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Section: Introductionmentioning

confidence: 99%

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

Miller

Morais

2013

J. High Energ. Phys.

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“…(11) are defined at a scale higher than M EW . In order to fully address the fine-tuning condition we need to check the relations among the parameters involved in Eq.…”

Section: High Scale Fine-tuningmentioning

confidence: 99%

Nonuniversal Gaugino Masses and Natural Supersymmetry

Gogoladze

Nasir

Shafi

2013

Int. J. Mod. Phys. A

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We demonstrate that natural supersymmetry is readily realized in the framework of SU (4)c ×SU (2) L ×SU (2) R with nonuniversal gaugino masses. Focusing on ameliorating the little hierarchy problem, we explore the parameter space of this model which yields small fine-tuning measuring parameters (natural supersymmetry) at the electroweak scale (∆ EW ) as well as at high scale (∆ HS ). It is possible to have both ∆ EW and ∆ HS less than 100 in these models, (2% or better fine-tuning), while keeping the light CP-even (Standard Model-like) Higgs mass in the 123-127 GeV range. The light stop quark mass lies in the range 700 GeV < mt 1 < 1500 GeV, and the range for the light stau lepton mass is 900 GeV < mτ 1 < 1300 GeV. The first two family squarks are in the mass range 3000 GeV < mt 1 < 4500 GeV, and for the gluino we find 2500 GeV < mg 1 < 3500 GeV. We do not find any solution with natural supersymmetry which yields significant enhancement for Higgs production and decay in the diphoton channel.

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“…Thus different non-universalities lead to different kind of LSP scenarios. Some recent papers has partly grabbed the impact of non-universality feature in either minimal or non-minimal version of models in the context of dark matter search, see for example [10,[12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

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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Higgs and non-universal gaugino masses: no SUSY signal expected yet?

Cited by 12 publications

References 89 publications

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

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

Nonuniversal Gaugino Masses and Natural Supersymmetry

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

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