Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event

@misc{frolovsky2026higgsino,
  title = {{Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event}},
  author = {Daniel Frolovsky and Sergei V. Ketov},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.11241},
  eprint = {2609.11241},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.11241},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - Higgsino dark matter in the Starobinsky supergravity with the MSSM in light of the LUX-ZEPLIN event
AU  - Daniel Frolovsky
AU  - Sergei V. Ketov
PY  - 2026
DA  - 2026/09/10
PB  - arXiv
DO  - 10.48550/arxiv.2609.11241
UR  - https://arxiv.org/abs/2609.11241
AB  - We realize a nearly pure higgsino dark matter candidate with mass of about 1 TeV in the Minimal Supersymmetric Standard Model coupled to the Starobinsky supergravity. The recent LUX-ZEPLIN 248 keV nuclear-recoil event has renewed interest in higgsino dark matter. In this framework, the particle spectrum, including the Higgs boson mass, the higgsino mass and its splitting, is connected to cosmic inflation observables via gravitational mediation of supersymmetry breaking and subsequent renormalization group evolution. We show that the Higgs boson mass predicted by the model agrees with the measured value within the quoted uncertainties for a broad range of bino-induced mass splittings. Wino-induced splitting leads to a Higgs mass several GeV higher and is therefore excluded.
ER  -