2025/01/21 by Imtiaz Khan, Waqas Ahmed, Khan, Imtiaz +7 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Relativity and Gravitational Theory
paper · pdf · doi:10.48550/arxiv.2501.12039
openalex publication_date 2025/01/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We investigate both the Z and H poles solutions for the Higgsino mass parameter μ>0 and μ<0 for the neutralino dark matter in light of the LHC supersymmetry searches and the direct detection dark matter experiments, LUX-ZEPLIN (LZ), in the Generalized Minimal Supergravity (GmSUGRA). Our study indicates that the latest experimental constraints from the LHC and LZ Collaborations exclude the light Higgsinos in the Z and H pole regions for the μ>0 case. Interestingly, for the μ< 0 case, a very light Higgsinos can still be consistent with the current constraints from the electroweakino searches and LZ experiment in the Z and H poles. Consequently, the μ< 0 case appears more promising and thus requires the dedicated efforts to make definitive conclusions about their current status from the experimental Collaborations. In this framework, our findings indicate a deviation of up to 2σ from the central value of \( aμ≡ (g-2)μ/2 \), resonating with the experimental results reported by CMD and BDM.