Top-squark-mediated annihilation scenario and direct detection of dark matter in compressed supersymmetry

Martin, Stephen P.

doi:10.1103/physrevd.76.095005

Cited by 32 publications

(10 citation statements)

References 92 publications

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“…Before proceeding, let us briefly discuss the consequences of adopting an LSP neutralino mass of m χ = 100 GeV. In general, such a low LSP mass places stringent bounds on the spectrum of the other SUSY particles, although these could be avoided in the particular case of a compressed spectrum [75][76][77]. For this latter case, a recent CMS analysis [78] excludes up to m χ 2 = m χ ± 650 GeV at 95% C.L.…”

Section: Jhep01(2019)185mentioning

confidence: 99%

Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $$ \mathcal{N} $$ = 1 SQCD

Guio¹,

Schmitz²

2019

J. High Energ. Phys.

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We investigate neutralino dark matter from a string/M-theory perspective. Using the Kallosh-Linde (KL) scenario to stabilize the string moduli requires supersymmetry breaking for uplifting to a de Sitter vacuum. We consider the free magnetic dual description of N = 1 SUSY QCD with massive flavours, the Intriligator-Seiberg-Shih model (ISS), as an F-term dynamical SUSY breaking sector. This framework allows for a gravitino mass in the TeV range. Moreover, due to the plethora of particles from the ISS sector, we investigate the consequences of coupling the MSSM with the KL-ISS setup to obtain constraints from both late entropy production and the dark matter relic density. In addition to thermal neutralino production, we consider neutralino production via the decays of gravitinos and ISS fields.

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Section: Jhep01(2019)185mentioning

confidence: 99%

Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $$ \mathcal{N} $$ = 1 SQCD

Guio¹,

Schmitz²

2019

J. High Energ. Phys.

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“…In view of the null results at the Run 1 and Run 2 of LHC, compressed SUSY (cSUSY) [1][2][3][4] has gained relevance in its ongoing pursuit, primarily aimed at looking at the elusive scenario of new physics with a significantly degenerate mass spectra. In such scenarios and more specifically in the minimal supersymmetric standard model (MSSM) with the lightest neutralino ( χ 0 1 ) as the lightest SUSY particle (LSP), the signals are characterized by soft final state objects including low missing transverse momentum ( / E T ) [1][2][3][4][5][6][7][8][9][10][11][12][13]. However, in non-minimal scenarios, the SUSY signals maybe substantially modified in the presence of alternative candidates for LSP and provide valuable probes of detection for the MSSM sector [14,15].…”

Section: Introductionmentioning

confidence: 99%

Boosted jet techniques for a supersymmetric scenario with gravitino LSP

Bhardwaj

Dutta

Konar

et al. 2020

J. High Energ. Phys.

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Search for compressed supersymmetry at multi-TeV scale, in the presence of a light gravitino dark matter, can get sizable uplift while looking into the associated fat- jets with missing transverse momenta as a signature of the boson produced in the decay process of much heavier next-to-lightest sparticle. We focus on the hadronic decay of the ensuing Higgs and/or Z boson giving rise to at least two fat-jets and "Image missing" in the final state. We perform a detailed background study adopting a multivariate analysis using a boosted decision tree to provide a robust investigation to explore the discovery potential for such signal at 14 TeV LHC considering different benchmark points satisfying all the theoretical and experimental constraints. This channel provides the best discovery prospects with most of the benchmarks discoverable within an integrated luminosity of $$ \mathrm{\mathcal{L}} $$ ℒ = 200 fb−1. Kinematic observables are investigated in order to distinguish between compressed and uncompressed spectra having similar event yields.

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“…The lack of evidence to date for SUSY has also focused attention on regions of the natural parameter space with sparse experimental coverage, such as phenomenologically well motivated models for which both the t and the χ 0 1 are light and nearly degenerate in mass [19][20][21][22][23][24][25][26][27]. This class of models, with "compressed" mass spectra, typically yield SM particles with low transverse momenta (p T ) from the decays of SUSY particles.…”

Section: Introductionmentioning

confidence: 99%

A search for new phenomena in pp collisions at $$\sqrt{s} = 13\,\text {TeV} $$ s = 13 TeV in final states with missing transverse momentum and at least one jet using the $$\alpha _{\mathrm {T}}$$ α T variable

Khachatryan¹,

Sirunyan²,

Tumasyan³

et al. 2017

Eur. Phys. J. C

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A search for new phenomena is performed in final states containing one or more jets and an imbalance in transverse momentum in pp collisions at a centre-of-mass energy of 13. The analysed data sample, recorded with the CMS detector at the CERN LHC, corresponds to an integrated luminosity of 2.3. Several kinematic variables are employed to suppress the dominant background, multijet production, as well as to discriminate between other standard model and new physics processes. The search provides sensitivity to a broad range of new-physics models that yield a stable weakly interacting massive particle. The number of observed candidate events is found to agree with the expected contributions from standard model processes, and the result is interpreted in the mass parameter space of fourteen simplified supersymmetric models that assume the pair production of gluinos or squarks and a range of decay modes. For models that assume gluino pair production, masses up to 1575 and 975 are excluded for gluinos and neutralinos, respectively. For models involving the pair production of top squarks and compressed mass spectra, top squark masses up to 400 are excluded.

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Top-squark-mediated annihilation scenario and direct detection of dark matter in compressed supersymmetry

Cited by 32 publications

References 92 publications

Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $$ \mathcal{N} $$ = 1 SQCD

Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $$ \mathcal{N} $$ = 1 SQCD

Boosted jet techniques for a supersymmetric scenario with gravitino LSP

A search for new phenomena in pp collisions at $$\sqrt{s} = 13\,\text {TeV} $$ s = 13 TeV in final states with missing transverse momentum and at least one jet using the $$\alpha _{\mathrm {T}}$$ α T variable

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