{"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/search-for-daily-modulation-of-mev-dark","title":"Search for Daily Modulation of MeV Dark Matter Signals with DAMIC-M","arxiv_id":"2307.07251","date":"2023-07-14","proceeding":null,"authors":["I. Arnquist","N. Avalos","D. Baxter","X. Bertou","N. Castello-Mor","A. E. Chavarria","J. Cuevas-Zepeda","A. Dastgheibi-Fard","C. De Dominicis","O. Deligny","J. Duarte-Campderros","E. Estrada","N. Gadola","R. Gaior","T. Hossbach","L. Iddir","B. J. Kavanagh","B. Kilminster","A. Lantero-Barreda","I. Lawson","S. Lee","A. Letessier-Selvon","P. Loaiza","A. Lopez-Virto","K. J. McGuire","P. Mitra","S. Munagavalasa","D. Norcini","S. Paul","A. Piers","P. Privitera","P. Robmann","S. Scorza","M. Settimo","R. Smida","M. Traina","R. Vilar","G. Warot","R. Yajur","J-P. Zopounidis"],"abstract":"Dark Matter (DM) particles with sufficiently large cross sections may scatter as they travel through Earth's bulk. The corresponding changes in the DM flux give rise to a characteristic daily modulation signal in detectors sensitive to DM-electron interactions. Here, we report results obtained from the first underground operation of the DAMIC-M prototype detector searching for such a signal from DM with MeV-scale mass. A model-independent analysis finds no modulation in the rate of 1$e^-$ events with sidereal period, where a DM signal would appear. We then use these data to place exclusion limits on DM in the mass range [0.53, 2.7] MeV/c$^2$ interacting with electrons via a dark photon mediator. Taking advantage of the time-dependent signal we improve by $\\sim$2 orders of magnitude on our previous limit obtained from the total rate of 1$e^-$ events, using the same data set. This daily modulation search represents the current strongest limit on DM-electron scattering via ultralight mediators for DM masses around 1 MeV/c$^2$.","url_abs":"https://arxiv.org/abs/2307.07251v2","url_pdf":"https://arxiv.org/pdf/2307.07251v2.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":"search-for-daily-modulation-of-mev-dark","repo_url":"https://github.com/bradkav/verne","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}