{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/searching-for-afterglow-light-dark-matter","title":"Searching for Afterglow: Light Dark Matter Boosted by Supernova Neutrinos","arxiv_id":"2206.06864","date":"2022-06-14","proceeding":null,"authors":["Yen-Hsun Lin","Wen-Hua Wu","Meng-Ru Wu","Henry Tsz-King Wong"],"abstract":"A novel analysis is performed, incorporating time-of-flight (TOF) information to study the interactions of dark matter (DM) with standard model particles. After supernova (SN) explosions, DM with mass $m_\\chi\\lesssim\\mathcal{O}({\\rm MeV})$ in the halo can be boosted by SN neutrinos (SN$\\nu$) to relativistic speed. The SN$\\nu$ boosted DM (BDM) arrives on Earth with TOF which depends only on $m_\\chi$ and is independent of the cross section. These BDMs can interact with detector targets in low-background experiments and manifest as afterglow events after the arrival of SN$\\nu$. The characteristic TOF spectra of the BDM events can lead to large background suppression and unique determination of $m_\\chi$. New cross section constraints on $\\sqrt{\\sigma_{\\chi e} \\sigma_{\\chi\\nu}}$ are derived from SN1987a in the Large Magellanic Cloud with data from the Kamiokande and Super-Kamiokande experiments. Potential sensitivities for the next galactic SN with Hyper-Kamiokande are projected. This analysis extends the existing bounds on $\\sqrt{\\sigma_{\\chi e}\\sigma_{\\chi \\nu}}$ over a broad range of $r_\\chi=\\sigma_{\\chi \\nu}/\\sigma_{\\chi e}$. In particular, the improvement is by 1-3 orders of magnitude for $m_\\chi<\\mathcal{O}(100\\,{\\rm keV})$ for $\\sigma_{\\chi e}\\sim\\sigma_{\\chi \\nu}$. Prospects of exploiting TOF information in other astrophysical systems to probe exotic physics with other DM candidates are discussed.","url_abs":"https://arxiv.org/abs/2206.06864v4","url_pdf":"https://arxiv.org/pdf/2206.06864v4.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"searching-for-afterglow-light-dark-matter","repo_url":"https://github.com/yenhsunlin/snorer","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}