Higgsino Dark Matter in the MSSM

Abstract

A comologically stable neutral component from a nearly pure $SU(2)$ doublet, with a mass $\sim$1.1 TeV, is one appealing candidate for dark matter (DM) consistent with all direct dark matter searches. We have explored this possibility in the context of the Minimal Supersymmetric extension of the Standard Model (MSSM), with the Higgsino playing the role of DM, in theories where supersymmetry breaking is transmitted by gravitational interactions at the unification scale $M\simeq 2\times 10^{16}$ GeV. We have focussed our work in the search of "light" supersymmetric spectra, which could be at reach of present and/or future colliders, in models with universal and non-universal Higgs and gaugino Majorana masses. The lightest supersymmetric particles of the spectrum are, by construction, two neutralinos and one chargino, almost degenerate, with a mass $\sim$1.1 TeV, and a mass splitting of a few GeV. Depending on the particular scenario the gluino can be at its experimental mass lower bound $\sim$ 2.2 TeV; in the squark sector, the lightest stop can be as light as $\sim$ 1.3 TeV, and the lightest slepton, the right-handed stau, can have a mass as light as $1.2$ TeV. The lightest neutralino can be found at the next generation of direct dark matter experimental searches. In the most favorable situation, the gluino, with some specific decay channels, could be found at the next run of the Large Hadron Collider (LHC), and the lightest stop at the High-Luminosity LHC run.

19 pages, 12 figures, minor changes, version to be published in PRD

References in corpus (11)

• The Well-Tempered Neutralino
• Neutralino Dark Matter at 14 and 100 TeV
• Compressed supersymmetry and natural neutralino dark matter from top squark-mediated annihilation to top quarks
• Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at $\sqrt{s}$=13 TeV with the ATLAS detector
• Search for a scalar partner of the top quark in the all-hadronic $t\bar{t}$ plus missing transverse momentum final state at $\sqrt{s}=13$ TeV with the ATLAS detector
• Nearly Degenerate Gauginos and Dark Matter at the LHC
• What next for the CMSSM and the NUHM: Improved prospects for superpartner and dark matter detection
• Prospects for dark matter searches in the pMSSM
• The Relic Neutralino Surface at a 100 TeV collider
• Theoretical uncertainties in the MSSM Higgs boson mass calculation
• Focus Point in the Light Stop Scenario

Cited by in corpus (18)

• Search for higgsinos decaying to two Higgs bosons and missing transverse momentum in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Improved $(g-2{)}_{\mu }$ Measurements and Wino/Higgsino Dark Matter
• $(g-2{)}_{\mu }$ and SUSY Dark Matter: Direct Detection and Collider Search Complementarity
• The WIMP Paradigm: Theme and Variations
• Search for supersymmetry in final states with disappearing tracks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Deep Learning Jet Image as a Probe of Light Higgsino Dark Matter at the LHC
• Higgsino Dark Matter in Pure Gravity Mediated Supersymmetry
• Compact objects in and beyond the Standard Model from non-perturbative vacuum scalarization
• Muon g-2, Neutralino Dark Matter and Stau NLSP
• Radiative Corrections to Aid the Direct Detection of the Higgsino-like Neutralino Dark Matter: Spin-Independent Interactions
• Exploring nearly degenerate higgsinos using mono-$Z/W$ signal
• Probing mild-tempered neutralino dark matter through top-squark production at the LHC
• Novel Higgsino Dark Matter Signatures at the LHC
• Model Characterization and Dark Matter in the Secluded $U(1{)}^{\prime }$ Model
• Investigating higgsino dark matter in the semi-constrained NMSSM
• Search strategy for gluinos at the LHC with a Higgs boson decaying into tau leptons
• Rebalance and Smear for Multi-jet Background Estimation
• Revisiting the gluino mass limits in the pMSSM in the light of the latest LHC data and Dark Matter constraints