Revisiting (s)neutrino dark matter in natural SUSY

Faber, T.; Jones-Pérez, J.; Liu, Y.; Porod, W.

doi:10.48550/arxiv.1909.11686

Cited by 2 publications

(2 citation statements)

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“…This is another economic model that naturally suppresses the DM-nucleon scattering. In fact, given that the neutralino DM has been tightly limited by the DD experiments in recent years, the sneutrino DM embedded in different extensions of the MSSM has regained broad interest [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49].…”

Section: Introductionmentioning

confidence: 99%

Suppressing the scattering of WIMP dark matter and nucleons in supersymmetric theories

et al. 2020

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So far dark matter direct detection experiments have indicated any dark matter particle to have feeble interactions with nucleons, while the dark relic matter density favors it to take part in weak interactions. We point out that the neutralino dark matter in the Minimal Supersymmetric Standard Model (MSSM) and the Next-to-Minimal Supersymmetric Standard Model (NMSSM) fails to process these two seemingly contradictory features in their most natural parameter space due to the limited theoretical structure. By contrast, the seesaw extension of the NMSSM, which was originally proposed to solve neutrino mass problem, enables the lightest sneutrino as a new viable DM candidate to readily have the features, and thus satisfies the constraints of the DM measurements in its broad parameter space. Compared with the Type-I seesaw extension, the dark matter physics in the inverse seesaw extension is more flexible to be consistent with current dark matter and collider experimental results. We conclude that the weakly interacting massive particles in supersymmetric theory is still a promising dark matter candidate.

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Section: Introductionmentioning

confidence: 99%

Suppressing the scattering of WIMP dark matter and nucleons in supersymmetric theories

et al. 2020

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“…On the other hand, models with small Yukawa couplings need non-thermal production of RH sneutrinos to account for the correct amount of DM [36][37][38][39]. In the recent work, Ref [40], different conditions and production mechanisms to obtain the measured amount of DM relic density have been studied.…”

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confidence: 99%

Dark matter candidates in the NMSSM with RH neutrino superfields

Lopez-Fogliani,

Perez,

de Austri

2021

Preprint

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R-parity conserving supersymmetric models with right-handed (RH) neutrinos are very appealing since they could naturally explain neutrino physics and also provide a good dark matter (DM) candidate such as the lightest supersymmetric particle (LSP). In this work we consider the next-to-minimal supersymmetric standard model (NMSSM) plus RH neutrino superfields, with effective Majorana masses dynamically generated at the electroweak scale (EW). We perform a scan of the relevant parameter space and study both possible DM candidates: RH sneutrino and neutralino. Especially for the case of RH sneutrino DM we analyse the intimate relation between both candidates to obtain the correct amount of relic density. Besides the well-known resonances, annihilations through scalar quartic couplings and coannihilation mechanisms with all kind of neutralinos, are crucial. Finally, we present the impact of current and future direct and indirect detection experiments on both DM candidates.

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Revisiting (s)neutrino dark matter in natural SUSY

Cited by 2 publications

References 0 publications

Suppressing the scattering of WIMP dark matter and nucleons in supersymmetric theories

Suppressing the scattering of WIMP dark matter and nucleons in supersymmetric theories

Dark matter candidates in the NMSSM with RH neutrino superfields

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