Gravity dual and CERN LHC study of single-sector supersymmetry breaking

Gabella, Maxime; Gherghetta, Tony; Giedt, Joel

doi:10.1103/physrevd.76.055001

Cited by 46 publications

(50 citation statements)

References 52 publications

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“…If this is so, one would expect the leading approximation to the soft terms to vanish in many circumstances. Additionally, the background we describe here and related configurations may have applications in phenomenologically-motivated settings like that studied in [32].…”

Section: Resultsmentioning

confidence: 99%

Gravity dual of metastable dynamical supersymmetry breaking

2008

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Metastable, supersymmetry-breaking configurations can be created in flux geometries by placing antibranes in warped throats. Via gauge/gravity duality, such configurations should have an interpretation as supersymmetry-breaking states in the dual field theory. In this paper, we perturbatively determine the asymptotic supergravity solutions corresponding to D3-brane probes placed at the tip of the cascading warped deformed conifold geometry, which is dual to an SU(N +M)×SU(N) gauge theory. The backreaction of the antibranes has the effect of introducing imaginary anti-self-dual flux, squashing the compact part of the space and forcing the dilaton to run. Using the generalization of holographic renormalization to cascading geometries, we determine the expectation values of operators in the dual field theory in terms of the asymptotic values of the supergravity fields.

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Section: Resultsmentioning

confidence: 99%

Gravity dual of metastable dynamical supersymmetry breaking

2008

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“…[32,33,35]). We would like also to point out that recently there were various other explicit realizations of the inverted hierarchy, based on geometric localization and non-Abelian family models [38][39][40][41][42][43].…”

Section: Jhep07(2012)155mentioning

confidence: 99%

Inverted sfermion mass hierarchy and the Higgs boson mass in the MSSM

Badziak

Dudas

Olechowski

et al. 2012

J. High Energ. Phys.

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It is shown that MSSM with first two generations of squarks and sleptons much heavier than the third one naturally predicts the maximal stop mixing as a consequence of the RG evolution, with vanishing (or small) trilinear coupling at the high scale. The Higgs boson is generically heavy, in the vicinity of 125 GeV. In this inverted hierarchy scenario, motivated by the supersymmetric FCNC problem and models for fermion masses based on horizontal symmetries, the mass of the lightest stop is O(0.5) TeV and of gluino -O(2 − 3) TeV. The LSP can be either higgsino or bino or a mixture of both and it can be a good dark matter candidate.

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“…Starting from GGM, it is possible to construct a set of natural Gauge Mediated (nGM) models where the phenomenology depends on the nature of the NLSP [26,40]. Various models assume that the fermion mass hierarchies are generated by the same physics responsible for breaking SUSY (see for example [41] and [42]). Typically in these models the entire third generation of sfermions is lighter than the other two.…”

Section: Jhep09(2014)103mentioning

confidence: 99%

Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 20 fb−1 of s $$ \sqrt{s} $$ = 8 TeV proton-proton collision data with the ATLAS detector

Aad¹,

Abbott²,

Abdallah³

et al. 2014

J. High Energ. Phys.

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A search for supersymmetry (SUSY) in events with large missing transverse momentum, jets, at least one hadronically decaying tau lepton and zero or one additional light leptons (electron/muon), has been performed using 20.3 fb −1 of proton-proton collision data at √ s = 8 TeV recorded with the ATLAS detector at the Large Hadron Collider. No excess above the Standard Model background expectation is observed in the various signal regions and 95% confidence level upper limits on the visible cross section for new phenomena are set. The results of the analysis are interpreted in several SUSY scenarios, significantly extending previous limits obtained in the same final states. In the framework of minimal gauge-mediated SUSY breaking models, values of the SUSY breaking scale Λ below 63 TeV are excluded, independently of tan β. Exclusion limits are also derived for an mSUGRA/CMSSM model, in both the R-parity-conserving and R-parity-violating case. A further interpretation is presented in a framework of natural gauge mediation, in which the gluino is assumed to be the only light coloured sparticle and gluino masses below 1090 GeV are excluded. The ATLAS collaboration 37 IntroductionSupersymmetry (SUSY) [1][2][3][4][5] introduces a symmetry between fermions and bosons, resulting in a SUSY partner (sparticle) for each Standard Model (SM) particle, with identical mass and quantum numbers except a difference of half a unit of spin. As none of these sparticles have been observed with the same mass as their SM partners, SUSY must be a broken symmetry if realized in nature. Assuming R-parity conservation [6][7][8][9][10], sparticles are produced in pairs and then decay through cascades involving other sparticles until the lightest SUSY particle (LSP), which is stable, is produced. In many SUSY models tau leptons can provide an important signature for new physics. Naturalness arguments [11,12] suggest that the lightest third-generation sparticles should have masses of a few hundred GeV to protect the Higgs boson mass from quadratically divergent quantum corrections. Light sleptons could play a role in the co-annihilation of neutralinos in the early universe,-1 - JHEP09(2014)103and, in particular, models with light tau sleptons (staus) are consistent with dark matter searches [13]. If squarks and gluinos, superpartners of quarks and gluons, 1 are in the LHC reach, their production rate may be dominant among SUSY processes. They could then decay in cascades involving tau leptons, high transverse momentum jets and missing transverse momentum from the LSP, which escapes undetected. More details about the various SUSY models considered in this paper are given in section 2. Furthermore, should SUSY or any other theory of physics Beyond the Standard Model (BSM) be discovered, independent studies of all three lepton flavours are necessary to investigate the coupling structure of the new physics, especially with regard to lepton universality. This paper reports on an inclusive search for SUSY particles produced via the strong i...

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Gravity dual and CERN LHC study of single-sector supersymmetry breaking

Cited by 46 publications

References 52 publications

Gravity dual of metastable dynamical supersymmetry breaking

Gravity dual of metastable dynamical supersymmetry breaking

Inverted sfermion mass hierarchy and the Higgs boson mass in the MSSM

Search for supersymmetry in events with large missing transverse momentum, jets, and at least one tau lepton in 20 fb−1 of s $$ \sqrt{s} $$ = 8 TeV proton-proton collision data with the ATLAS detector

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