Supersymmetry breaking scalar masses and trilinear soft terms from high-dimensional operators in SUSY GUT

Self Cite

From generalized gravity mediation we build a SUGRA scenario in which the gluino is much heavier than the electroweak gauginos at the GUT scale. We find that such a non-universal gaugino scenario with very heavy gluino at the GUT scale can be naturally obtained with proper high dimensional operators in the framework of SU (5) GUT. Then, due to the effects of heavy gluino, at the weak scale all colored sparticles are heavy while the uncolored sparticles are light, which can explain the Brookhaven muon g − 2 measurement while satisfying the collider constraints (both the 125 GeV Higgs mass and the direct search limits of sparticles) and dark matter requirements. We also find that, in order to explain the muon g − 2 measurement, the neutralino dark matter is lighter than 200 GeV in our scenario, which can be mostly covered by the future Xenon1T experiment.

“…Relevant calculations can be found in our previous works [37][38][39][40]. Similar calculations give the resulting trilinear terms…”

Section: Jhep06(2015)079supporting

confidence: 57%

“…Note that our previous calculations [37][38][39][40] indicate that the up-type squark trilinear terms vanish if we only introduce the F-term VEV for 75.…”

Section: Jhep06(2015)079mentioning

confidence: 83%

See 1 more Smart Citation

Reconcile muon g-2 anomaly with LHC data in SUGRA with generalized gravity mediation

Wang

Yang

2015

Self Cite

“…Is this symmetry a remnant of some larger simple group that is spontaneously broken at a high scale by some Higgs-like mechanism [10], or does it derive from some other physics, such as higher dimensional operators or extra dimensions (see for example [11])? A Grand Unified Theory (GUT) is strongly motivated by the running of gauge couplings, which within supersymmetric scenarios converge to a common value at a scale of about M GU T ≈ 2×10 16 GeV [12].…”

Section: Introductionmentioning

confidence: 99%

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

Miller

Morais

2013

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.

“…In this work we propose to use the generalized gravity mediation [22][23][24][25][26][27][28][29][30][31][32][33] with non-renormalizable Kähler potential and superpotential. Because GUT is one of the retained motivations of split SUSY, certain high-representation Higgs fields of GUT group could appear in the non-renormalizable Kähler potential and superpotential.…”

Section: Jhep03(2015)050mentioning

confidence: 99%

A split SUSY model from SUSY GUT

Wang

Yang

2015

Self Cite

We propose to split the sparticle spectrum from the hierarchy between the GUT scale and the Planck scale. A split supersymmetric model, which gives non-universal gaugino masses, is built with proper high dimensional operators in the framework of SO (10) GUT. Based on a calculation of two-loop beta functions for gauge couplings (taking into account all weak scale threshold corrections), we check the gauge coupling unification and dark matter constraints (relic density and direct detections). We find that our scenario can achieve the gauge coupling unification and satisfy the dark matter constraints in some part of parameter space. We also examine the sensitivity of the future XENON1T experiment and find that the currently allowed parameter space in our scenario can be covered for a neutralino dark matter below about 1.0 TeV.