PreprintCC BY 4.0arXiv
Explaining the LZ High-Energy Recoil Event with Inelastic Sneutrino Dark Matter in Supersymmetry
- 1Centre for Theoretical Physics , Henan Normal University , Xinxiang 453007 , P. R. China
- 2Henan Institute of Science and Technology , Xinxiang 453003 , P.R. China
- 3Institute of Theoretical Physics , Chinese Academy of Sciences , Beijing 100190 , P. R. China
Abstract
We study an inelastic sneutrino dark matter origin of the LZ high-energy event in the inverse-seesaw next-to-minimal supersymmetric standard model. Approximate lepton-number conservation protects the small mass splitting, while singlet interactions separate freeze-out from solar-neutrino production. The LZ recoil and solar constraints overlap even for a fully cooled population in equilibrium. Three thermal mechanisms reproduce the relic abundance and satisfy all relevant constraints. Photon-dominated annihilation produces gamma-ray boxes, offering a complementary test of this interpretation.
Related
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- Inelastic Dark Matter and High-Energy Recoil Signatures in LZ
- Inelastic Dark Matter Signature at High Recoil Energy in LUX-ZEPLIN and CRESST
- Inelastic Dark Matter from a Higher-Dimensional Operator: The LUX-ZEPLIN High-Recoil Event and Thermal Relic
- Effect of inelastic scalar dark matter in hidden U(1) scenario after the LZ nuclear recoil
BibTeX
@misc{lian2026explaining,
title = {{Explaining the LZ High-Energy Recoil Event with Inelastic Sneutrino Dark Matter in Supersymmetry}},
author = {Jingwei Lian and Jin Min Yang},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.15742},
eprint = {2609.15742},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.15742},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Explaining the LZ High-Energy Recoil Event with Inelastic Sneutrino Dark Matter in Supersymmetry
AU - Jingwei Lian
AU - Jin Min Yang
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2609.15742
UR - https://arxiv.org/abs/2609.15742
AB - We study an inelastic sneutrino dark matter origin of the LZ high-energy event in the inverse-seesaw next-to-minimal supersymmetric standard model. Approximate lepton-number conservation protects the small mass splitting, while singlet interactions separate freeze-out from solar-neutrino production. The LZ recoil and solar constraints overlap even for a fully cooled population in equilibrium. Three thermal mechanisms reproduce the relic abundance and satisfy all relevant constraints. Photon-dominated annihilation produces gamma-ray boxes, offering a complementary test of this interpretation.
SN - 2331-8422
ER -