The higgsino-singlino sector of the NMSSM: Combined constraints from dark matter and the LHC

Abstract : A light singlino is a promising candidate for dark matter, and a light higgsino is natural in the parameter space of the NMSSM. We study the combined constraints on this scenario resulting from the dark matter relic density, the most recent results from direct detection exper- iments, LEP and the LHC. In particular limits from a recent search for electroweak production of charginos and neutralinos at √s = 13 TeV after 35.9 fb−1 by CMS and constraints on spin-independent dark matter-nucleon cross sections from XENON1T after one tonne × year exposure are considered. We find that scenarios with higgsino masses below ∼ 250 GeV as well as singlino masses below ∼ 100 GeV are strongly constrained depending, however, on assump- tions on the bino mass parameter M_1. Benchmark points and branching fractions for future searches at the LHC are proposed.
Type de document :
Pré-publication, Document de travail
LUPM:18-026. 2018
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https://hal.archives-ouvertes.fr/hal-01814850
Contributeur : Nicolas Clementin <>
Soumis le : mercredi 13 juin 2018 - 15:48:57
Dernière modification le : mardi 17 juillet 2018 - 16:59:30

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  • HAL Id : hal-01814850, version 1

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Ulrich Ellwanger, Cyril Hugonie. The higgsino-singlino sector of the NMSSM: Combined constraints from dark matter and the LHC. LUPM:18-026. 2018. 〈hal-01814850〉

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