Heavy Higgsino Dark Matter With Low Reheating in View of the LZ High-Recoil Event

arXiv:2609.33869 · hep-ph, astro-ph.CO, hep-th · Submitted 2026-09-27 · Read on arXiv

hep-ph, astro-ph.CO, hep-th

Submitted: 2026-09-27

Updated: 2026-10-07

Terminology

• Reheating — 15× in this paper · explained in 2 episodes
• Abundance — 10× in this paper · explained in 1 episode
• Chemical Equilibrium — 3× in this paper
• Accuracy — 2× in this paper · explained in 1 episode
• Benchmark — 2× in this paper · explained in 2 episodes
• Standard Cosmology — 2× in this paper
• Thermal Production — 2× in this paper
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes

Sources

• Dark Matter at the Kinematic Edge: Interpreting the 248 keV LZ Nuclear-Recoil Candidate
• Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event
• Confronting the Higgsino Interpretation of the LZ Event with the High-Energy Sideband
• Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event
• Heavy Higgsino Dark Matter at the Scale of the Vanishing Higgs Quartic
• Kaluza--Klein Dark-Photon Mediation of Inelastic Dark Matter at LUX-ZEPLIN
• Inelastic Singlet-Doublet Fermion Dark Matter in light of the 248 keV LZ event
• LZ nuclear recoil event from inelastic singlet-doublet scalar dark matter

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