Large A t without the desert

Abdalgabar, Ammar; Cornell, Alan S.; Deandrea, Aldo; McGarrie, Moritz

doi:10.1007/jhep07(2014)158

Cited by 7 publications

(9 citation statements)

References 70 publications

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“…According to Eq. (1), beside heavy stops the Higgs boson mass can also be improved by large X t [9,10,11]. There are also other proposals to solve this tension [12].…”

Section: Introductionmentioning

confidence: 99%

125 GeV Higgs boson mass and muon g−2 in 5D MSSM

Okada

Tran

2016

Phys. Rev. D

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In the MSSM, the tension between the observed Higgs boson mass and the experimental result of the muon g − 2 measurement requires a large mass splitting between stops and smuons/charginos/neutralinos. We consider a 5-dimensional (5D) framework of the MSSM with the Randall-Sundrum warped background metric, and show that such a mass hierarchy is naturally achieved in terms of geometry. In our setup, the supersymmetry is broken at the ultraviolet (UV) brane, while all the MSSM multiplets reside in the 5D bulk. An appropriate choice of the bulk mass parameters for the MSSM matter multiplets can naturally realize the sparticle mass hierarchy desired to resolve the tension. Gravitino is localized at the UV brane and hence becomes very heavy, while the gauginos spreading over the bulk acquire their masses suppressed by the 5th dimensional volume. As a result, the LSP neutralino is a candidate for the dark matter as usual in the MSSM. In addition to reproducing the SM-like Higgs boson mass of around 125 GeV and the measured value of the muon g − 2, we consider a variety of phenomenological constraints, and present the benchmark particle mass spectra which can be explored at the LHC Run-2 in the near future.

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“…According to Eq. (1), beside heavy stops the Higgs boson mass can also be improved by large X t [9,10,11]. There are also other proposals to solve this tension [12].…”

Section: Introductionmentioning

confidence: 99%

125 GeV Higgs boson mass and muon g−2 in 5D MSSM

Okada

Tran

2016

Phys. Rev. D

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“…where F and M are the free parameters we will scan over. This paper is the first implementation of five dimensional GMSB soft masses [16,17,[23][24][25], with five dimensional RGEs [5,6]. In both model 1 and 2 we will take the supersymmetry breaking to be on the opposite brane to the matter, and both brane and bulk matter are essentially suppressed by the effect of the extra dimension, as in the above equation.…”

Section: Minimal Gauge Mediation (Mgm) In Five Dimensionsmentioning

confidence: 99%

“…In this model the 3rd generation is located on one brane and the 1st and 2nd generation on another, along with the supersymmetry breaking sector. The effects of supersymmetry breaking are mediated by gauge forces [26] (but one can also easily consider gravity mediation too in this context) and the result is that the 1st and 2nd generation and also the gauginos will receive normal (4D) GMSB soft mass contributions but the 3rd generation will be heavily suppressed [5,6,17,25]. The soft mass matrix for squarks and sleptons takes the form…”

Section: Realising Natural Susy With Gmsb In Five Dimensions (Nmgm)mentioning

confidence: 99%

“…In our analysis we used renormalisation group equations outlined in [5,6] and adapted a C++ based spectrum generator originally intended for the (four dimensional) MSSM [7]. A similar modification may be carried out with any publicly available spectrum generator [8-10] 1 .…”

Section: Introductionmentioning

confidence: 99%

“…A similar modification may be carried out with any publicly available spectrum generator [8-10] 1 . The RGEs used in this paper may be found in [5] and further conventions in [6] and [15][16][17][18][19]. For earlier phenomenological studies of five dimensional theories see for example [20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Features of electroweak symmetry breaking in five dimensional SUSY models

Lalak

Lewicki

McGarrie

et al. 2015

J. High Energ. Phys.

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Abstract:We explore the phenomenological predictions of a supersymmetric standard model, with a large extra dimension and unifying gauge couplings. The modified five dimensional renormalisation group equations make it possible to obtain light, maximally mixed stops, with a low scale of supersymmetry breaking and a low unification scale. This allows the fine-tuning to be lowered right down to the barrier coming directly from experimental lower limits on the stop masses. We also show that modifying the SUSY breaking pattern to obtain lighter stops at the high scale does not result in fine-tuning relaxation, and only RGE effects turn out to be effective in generating a lower fine-tuning.

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Natural supersymmetry and unification in five dimensions

Abdalgabar

Cornell

Deandrea

et al. 2016

J. High Energ. Phys.

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We explore unification and natural supersymmetry in a five dimensional extension of the standard model in which the extra dimension may be large, of the order of 1-10 TeV. Power law running generates a TeV scale A t term allowing for the observed 125 GeV Higgs and allowing for stop masses below 2 TeV, compatible with a natural SUSY spectrum. We supply the full one-loop RGEs for various models and use metastability to give a prediction that the gluino mass should be lighter than 3.5 TeV for A t ≥ −2.5 TeV, for such a compactification scale, with brane localised 3rd generation matter. We also discuss models in which only the 1st and 2nd generation of matter fields are located in the bulk. We also look at electroweak symmetry breaking in these models.

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Large A t without the desert

Cited by 7 publications

References 70 publications

125 GeV Higgs boson mass and muon g−2 in 5D MSSM

125 GeV Higgs boson mass and muon g−2 in 5D MSSM

Features of electroweak symmetry breaking in five dimensional SUSY models

Natural supersymmetry and unification in five dimensions

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