Supernova-Neutrino-Boosted Dark Matter from All Galaxies
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arXiv
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866913499051982848 |
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| author | Lin, Yen-Hsun Wu, Meng-Ru |
| author_facet | Lin, Yen-Hsun Wu, Meng-Ru |
| contents | It has been recently proposed that the boosted dark matter (BDM) by supernova neutrinos (SN$ν$) from SN1987a or from the next Galactic supernova (SN) can serve as a novel component to probe nonvanishing interaction between dark matter (DM) and the standard model leptons [Y.-H. Lin et al., Phys. Rev. Lett 130, 111002 (2023) and Y.-H. Lin et al., Phys. Rev. D 108, 083013 (2023)]. In this Letter, we extend this concept and evaluate the present-day diffuse flux of SN$ν$ BDM originated from all galaxies at higher redshifts. We show that by considering this diffuse BDM (DBDM) component, the best sensitivity on the product of the energy-independent DM-$ν$ and DM-electron cross sections, $\sqrt{σ_{χν}σ_{χe}}\simeq \mathcal{O}(10^{-37})$ cm$^2$ for sub-MeV DM, can be obtained with large-size neutrino experiments such as Super-Kamiokande or Hyper-Kamiokande, surpassing the estimated SN$ν$ BDM bound from SN1987a. We also examine the impact due to the presence of DM spikes around the supermassive black holes in galaxies on SN$ν$ BDM and DBDM. Our results suggest that both the DBDM and the SN$ν$ BDM probes are robust to the uncertain properties of DM spikes, unless the next Galactic SN happens to occur at a location extremely close to or right behind the Galactic Center along the SN line of sight. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_08528 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Supernova-Neutrino-Boosted Dark Matter from All Galaxies Lin, Yen-Hsun Wu, Meng-Ru High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena It has been recently proposed that the boosted dark matter (BDM) by supernova neutrinos (SN$ν$) from SN1987a or from the next Galactic supernova (SN) can serve as a novel component to probe nonvanishing interaction between dark matter (DM) and the standard model leptons [Y.-H. Lin et al., Phys. Rev. Lett 130, 111002 (2023) and Y.-H. Lin et al., Phys. Rev. D 108, 083013 (2023)]. In this Letter, we extend this concept and evaluate the present-day diffuse flux of SN$ν$ BDM originated from all galaxies at higher redshifts. We show that by considering this diffuse BDM (DBDM) component, the best sensitivity on the product of the energy-independent DM-$ν$ and DM-electron cross sections, $\sqrt{σ_{χν}σ_{χe}}\simeq \mathcal{O}(10^{-37})$ cm$^2$ for sub-MeV DM, can be obtained with large-size neutrino experiments such as Super-Kamiokande or Hyper-Kamiokande, surpassing the estimated SN$ν$ BDM bound from SN1987a. We also examine the impact due to the presence of DM spikes around the supermassive black holes in galaxies on SN$ν$ BDM and DBDM. Our results suggest that both the DBDM and the SN$ν$ BDM probes are robust to the uncertain properties of DM spikes, unless the next Galactic SN happens to occur at a location extremely close to or right behind the Galactic Center along the SN line of sight. |
| title | Supernova-Neutrino-Boosted Dark Matter from All Galaxies |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2404.08528 |