Establishing the axion as the dark matter (DM) particle after a haloscope discovery typically requires follow-up experiments to break the degeneracy between the axion’s coupling to photons and its local DM abundance. Given that a discovery would justify more significant investments, we explore the prospects of ambitious light-shining-through-a-wall (LSW) setups to probe the QCD axion band. Leveraging the excellent mass determination in haloscopes, we show how to design LSW experiments with lengths on the order of 100 km and suitably aligned magnetic fields with apertures of around 1 m to reach well-motivated axion models across up to four orders of magnitude in mass. Beyond presenting a concrete plan for postdiscovery experimental efforts, we briefly discuss complementary experiments and future directions beyond LSW experiments.
{ "_oai": { "updated": "2025-01-09T00:30:26Z", "id": "oai:repo.scoap3.org:91112", "sets": [ "PRD" ] }, "authors": [ { "raw_name": "Sebastian Hoof", "affiliations": [ { "country": "Italy", "value": "Dipartimento di Fisica e Astronomia \u201cGalileo Galilei,\u201d Universit\u00e0 degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy" }, { "country": "Italy", "value": "Istituto Nazionale di Fisica Nucleare\u2014Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy" } ], "surname": "Hoof", "given_names": "Sebastian", "full_name": "Hoof, Sebastian" }, { "raw_name": "Joerg Jaeckel", "affiliations": [ { "country": "Germany", "value": "Institut f\u00fcr Theoretische Physik, Universit\u00e4t Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany" } ], "surname": "Jaeckel", "given_names": "Joerg", "full_name": "Jaeckel, Joerg" }, { "raw_name": "Giuseppe Lucente", "affiliations": [ { "country": "Germany", "value": "Institut f\u00fcr Theoretische Physik, Universit\u00e4t Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany" }, { "country": "Germany", "value": "Kirchhoff-Institut f\u00fcr Physik, Universit\u00e4t Heidelberg, Im Neuenheimer Feld 227, 69120 Heidelberg, Germany" } ], "surname": "Lucente", "given_names": "Giuseppe", "full_name": "Lucente, Giuseppe" } ], "titles": [ { "source": "APS", "title": "Ultimate light-shining-through-a-wall experiments to establish QCD axions as the dominant form of dark matter" } ], "dois": [ { "value": "10.1103/PhysRevD.111.015003" } ], "publication_info": [ { "journal_volume": "111", "journal_title": "Physical Review D", "material": "article", "journal_issue": "1", "year": 2025 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2025-01-09T00:30:19.073150", "source": "APS", "method": "APS", "submission_number": "dc358f60ce2011ef8ffe02401effc807" }, "page_nr": [ 24 ], "license": [ { "url": "https://creativecommons.org/licenses/by/4.0/", "license": "CC-BY-4.0" } ], "copyright": [ { "statement": "Published by the American Physical Society", "year": "2025" } ], "control_number": "91112", "record_creation_date": "2025-01-08T16:30:03.983033", "_files": [ { "checksum": "md5:eb18b254930f83bf9290d6a6b0f0b30b", "filetype": "pdf", "bucket": "e628fe99-0f81-4c6f-899c-13b3d916f964", "version_id": "0625e635-acd0-4fe2-8bb1-371467579735", "key": "10.1103/PhysRevD.111.015003.pdf", "size": 2535043 }, { "checksum": "md5:9642f3cd0d17542f6e0a44c0af6d599f", "filetype": "xml", "bucket": "e628fe99-0f81-4c6f-899c-13b3d916f964", "version_id": "18ec98b7-53b2-4cf1-86be-b7b1418106dc", "key": "10.1103/PhysRevD.111.015003.xml", "size": 453588 } ], "collections": [ { "primary": "HEP" }, { "primary": "Citeable" }, { "primary": "Published" } ], "arxiv_eprints": [ { "categories": [ "hep-ph", "hep-ex" ], "value": "2407.04772" } ], "abstracts": [ { "source": "APS", "value": "Establishing the axion as the dark matter (DM) particle after a haloscope discovery typically requires follow-up experiments to break the degeneracy between the axion\u2019s coupling to photons and its local DM abundance. Given that a discovery would justify more significant investments, we explore the prospects of ambitious light-shining-through-a-wall (LSW) setups to probe the QCD axion band. Leveraging the excellent mass determination in haloscopes, we show how to design LSW experiments with lengths on the order of 100 km and suitably aligned magnetic fields with apertures of around 1 m to reach well-motivated axion models across up to four orders of magnitude in mass. Beyond presenting a concrete plan for postdiscovery experimental efforts, we briefly discuss complementary experiments and future directions beyond LSW experiments." } ], "imprints": [ { "date": "2025-01-08", "publisher": "APS" } ] }