Pseudo-Dirac Higgsino dark matter in GUT scale supersymmetry

Abstract

We investigate a scenario in which supersymmetry is broken at scale $M_S\ge 10^{14}$ GeV leaving only a pair of Higgs doublets, their superpartners (Higgsinos) and a gauge singlet fermion (singlino) besides the standard model fermions and gauge bosons at low energy. The Higgsino-singlino mixing induces small splitting between the masses of electrically neutral components of Higgsinos which otherwise remain almost degenerate in GUT scale supersymmetry. The lightest combination of them provides a viable thermal dark matter if the Higgsino mass scale is close to $1$ TeV. The small mass splitting induced by singlino turns the neutral components of Higgsinos into pseudo-Dirac fermions which successfully evade the constraints from the direct detection experiments if the singlino mass is $\lesssim 10^8$ GeV. We analyse the constraints on the effective framework, arising from the stability of electroweak vacuum, observed mass and couplings of Higgs, and the limits on the masses of the other scalars, by matching it with the next-to-minimal supersymmetric standard model at $M_S$. It is found that the presence of singlino at intermediate scale significantly improves the stability of electroweak vacuum and allows a stable or metastable vacuum for almost all the values of $\tan \beta$ while the observed Higgs mass together with the limit on the charged Higgs mass favours $\tan \beta \lesssim 3$.

arXiv comment37 pages, 8 figures, 1 table; minor changes, published version

References in corpus (41)

• Theory and phenomenology of two-Higgs-doublet models
• Minimal Dark Matter
• The Next-to-Minimal Supersymmetric Standard Model
• SARAH 4: A tool for (not only SUSY) model builders
• The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit
• Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
• Cosmology and Astrophysics of Minimal Dark Matter
• Higgs mass implications on the stability of the electroweak vacuum
• Non-perturbative Effect on Thermal Relic Abundance of Dark Matter
• On the metastability of the Standard Model vacuum
• The Renormalization-Group Improved Higgs Sector of the Minimal Supersymmetric Model
• Weak Radiative Decays of the B Meson and Bounds on $M_{H^{\pm }}$ in the Two-Higgs-Doublet Model
• Probing High-Scale and Split Supersymmetry with Higgs Mass Measurements
• Neutrino Mass Operator Renormalization Revisited
• Neutralino Dark Matter at 14 and 100 TeV
• Elastic Scattering and Direct Detection of Kaluza-Klein Dark Matter
• Limiting two-Higgs-doublet models
• Annual Modulation of Dark Matter in the Presence of Streams
• Massive Doublet Leptons
• Model Independent Form Factors for Spin Independent Neutralino-Nucleon Scattering from Elastic Electron Scattering Data
• Neutrino Mass Operator Renormalization in Two Higgs Doublet Models and the MSSM
• Compressed electroweakino spectra at the LHC
• Constructing 5d orbifold grand unified theories from heterotic strings
• Higgsino Dark Matter in High-Scale Supersymmetry
• Destabilizing Divergences in Supergravity-Coupled Supersymmetric Theories
• Unification in 5D SO(10)
• Forward-backward asymmetry in top quark production from light colored scalars in SO(10) model
• Last Electroweak WIMP Standing: Pseudo-Dirac Higgsino Status and Compact Stars as Future Probes
• Update of Global Two-Higgs-Doublet Model Fits
• Quarks and Leptons between Branes and Bulk
• Bulk and brane anomalies in six dimensions
• Mass Degeneracy of the Higgsinos
• The discreet charm of higgsino dark matter - a pocket review
• Vacuum stability and supersymmetry at high scales with two Higgs doublets
• New Physics Opportunities for Long-Lived Particles at Electron-Proton Colliders
• Tackling light higgsinos at the ILC
• Flavor hierarchy in SO(10) grand unified theories via 5-dimensional wave-function localization
• Split symmetries
• Order and Anarchy hand in hand in 5D SO(10)
• Effects of heavy neutrinos on vacuum stability in two-Higgs-doublet model with GUT scale supersymmetry
• Searching for light higgsinos with b-jets and missing leptons

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• Proton decay in flux compactifications
• Scalar-induced Neutrinoless Double Beta Decay in $SU(5)$