Direct-detection constraints on inelastic dark matter with a scalar mediator
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arXiv
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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2026
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| _version_ | 1866910134314205184 |
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| author | Voronchikhin, I. V. Kirpichnikov, D. V. |
| author_facet | Voronchikhin, I. V. Kirpichnikov, D. V. |
| contents | We calculate direct detection constraints on inelastic dark matter (DM) for a scalar portal scenario with leptophilic couplings. The p-wave velocity suppression of the annihilation cross section of scalar-mediated inelastic Dirac DM implies the opening of viable regions of DM parameter space in the MeV-GeV mass range. Xenon-based experiments can provide a constraints on scalar-mediated inelastic fermion dark matter for sub-MeV mass splitting, via endothermic and exothermic spin-independent DM-electron scattering. To estimate the relevant constraints, we use public data from the XENON1T, PandaX-4T, and LZ liquid-xenon experiments that measure ionization electron signals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_06929 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Direct-detection constraints on inelastic dark matter with a scalar mediator Voronchikhin, I. V. Kirpichnikov, D. V. High Energy Physics - Phenomenology We calculate direct detection constraints on inelastic dark matter (DM) for a scalar portal scenario with leptophilic couplings. The p-wave velocity suppression of the annihilation cross section of scalar-mediated inelastic Dirac DM implies the opening of viable regions of DM parameter space in the MeV-GeV mass range. Xenon-based experiments can provide a constraints on scalar-mediated inelastic fermion dark matter for sub-MeV mass splitting, via endothermic and exothermic spin-independent DM-electron scattering. To estimate the relevant constraints, we use public data from the XENON1T, PandaX-4T, and LZ liquid-xenon experiments that measure ionization electron signals. |
| title | Direct-detection constraints on inelastic dark matter with a scalar mediator |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.06929 |