Abstract We apply the festina lente (FL) bound on a hidden sector with U(1) gauge symmetries. Since the FL bound puts a lower bound on masses of particles charged under the U(1) gauge symmetries, it is possible to constrain the hidden sector even with a tiny coupling to the Standard Model. In particular, we focus on the phenomenological implications of the FL bound on milli-charged particles, which naturally arise when kinetic mixing between the photon and the hidden photon is allowed. It turns out that the milli-charged particle with the mass M ≲ 5 meV is prohibited by the FL bound in the case of a single hidden U(1), insensitively of the value of small kinetic mixing. This bound is crucial when bosonic dark matter is taken into consideration in this framework: the fuzzy bosonic dark matter models requesting minuscule masses are ruled out by the FL bound if the longevity of dark matter is protected by the hidden gauge symmetry.
{ "_oai": { "updated": "2023-02-15T15:30:33Z", "id": "oai:repo.scoap3.org:75414", "sets": [ "PTEP" ] }, "authors": [ { "affiliations": [ { "country": "South Korea", "value": "Department of Physics & IPAP & Lab for Dark Universe, Yonsei University, , , Seoul 03722, , , Republic of Korea" } ], "surname": "Ban", "given_names": "Kayoung", "full_name": "Ban, Kayoung" }, { "affiliations": [ { "country": "South Korea", "value": "Department of Physics & IPAP & Lab for Dark Universe, Yonsei University, , , Seoul 03722, , , Republic of Korea" } ], "surname": "Cheong", "given_names": "Dhong Yeon", "full_name": "Cheong, Dhong Yeon" }, { "affiliations": [ { "country": "South Korea", "value": "Asia Pacific Center for Theoretical Physics (APCTP), , , Pohang 37673, , , Republic of Korea" }, { "country": "South Korea", "value": "Department of Physics, Pohang University of Science and Technology, , , Pohang 37673, , , Republic of Korea" } ], "surname": "Okada", "given_names": "Hiroshi", "full_name": "Okada, Hiroshi" }, { "affiliations": [ { "country": "Japan", "value": "Department of Physics, Kyushu University, , , 744 Motooka, Nishi-ku, Fukuoka 819-0395, , , Japan" } ], "surname": "Otsuka", "given_names": "Hajime", "full_name": "Otsuka, Hajime" }, { "affiliations": [ { "country": "South Korea", "value": "Department of Physics and Institute of Quantum Systems (IQS), Chungnam National University, , , Daejeon 34134, , , Republic of Korea" }, { "country": "South Korea", "value": "Center for Theoretical Physics of the Universe (CTPU), Institute for Basic Science (IBS), , , Daejeon 34126, , , Republic of Korea" } ], "surname": "Park", "email": "jcpark@cnu.ac.kr", "full_name": "Park, Jong-Chul", "given_names": "Jong-Chul" }, { "affiliations": [ { "country": "South Korea", "value": "Department of Physics & IPAP & Lab for Dark Universe, Yonsei University, , , Seoul 03722, , , Republic of Korea" }, { "country": "South Korea", "value": "Korea Institute for Advanced Study, , , Seoul 02455, , , Republic of Korea" } ], "surname": "Park", "email": "sc.park@yonsei.ac.kr", "full_name": "Park, Seong Chan", "given_names": "Seong Chan" } ], "titles": [ { "source": "OUP", "title": "Phenomenological implications on a hidden sector from the festina lente bound" } ], "dois": [ { "value": "10.1093/ptep/ptac176" } ], "publication_info": [ { "journal_title": "Progress of Theoretical and Experimental Physics", "material": "article", "journal_volume": "2023", "artid": "013B04", "year": 2023, "journal_issue": "1" } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2023-02-15T15:30:31.019579", "source": "OUP", "method": "OUP", "submission_number": "9c0ab616ad4511eda920065bd8dc6b20" }, "page_nr": [ 8 ], "license": [ { "url": "https://creativecommons.org/licenses/by/4.0/", "license": "CC-BY-4.0" } ], "copyright": [ { "statement": "\u00a9 The Author(s) 2022. 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Since the FL bound puts a lower bound on masses of particles charged under the U(1) gauge symmetries, it is possible to constrain the hidden sector even with a tiny coupling to the Standard Model. In particular, we focus on the phenomenological implications of the FL bound on milli-charged particles, which naturally arise when kinetic mixing between the photon and the hidden photon is allowed. It turns out that the milli-charged particle with the mass M \u2272 5 meV is prohibited by the FL bound in the case of a single hidden U(1), insensitively of the value of small kinetic mixing. This bound is crucial when bosonic dark matter is taken into consideration in this framework: the fuzzy bosonic dark matter models requesting minuscule masses are ruled out by the FL bound if the longevity of dark matter is protected by the hidden gauge symmetry." } ], "imprints": [ { "date": "2022-12-20", "publisher": "OUP" } ] }