The dark matter density distribution in small-scale astrophysical objects may indicate that dark matter is self-interacting, while observations from clusters of galaxies suggest that the corresponding cross section depends on the velocity. Using a model-independent approach, we show that resonant self-interacting dark matter can naturally explain such a behavior. In contrast to what is often assumed, this does not require a light mediator. We present explicit realizations of this mechanism and discuss the corresponding astrophysical constraints.
{ "_oai": { "updated": "2022-03-04T10:37:58Z", "id": "oai:repo.scoap3.org:45798", "sets": [ "PRL" ] }, "authors": [ { "raw_name": "Xiaoyong Chu", "affiliations": [ { "country": "Austria", "value": "Institute of High Energy Physics, Austrian Academy of Sciences, Nikolsdorfer Gasse 18, 1050 Vienna, Austria" } ], "surname": "Chu", "given_names": "Xiaoyong", "full_name": "Chu, Xiaoyong" }, { "raw_name": "Camilo Garcia-Cely", "affiliations": [ { "country": "Germany", "value": "Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany" } ], "surname": "Garcia-Cely", "given_names": "Camilo", "full_name": "Garcia-Cely, Camilo" }, { "raw_name": "Hitoshi Murayama", "affiliations": [ { "country": "USA", "value": "Department of Physics, University of California, Berkeley, California 94720, USA" }, { "country": "Japan", "value": "Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583, Japan" }, { "country": "USA", "value": "Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA" }, { "country": "Germany", "value": "Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany" } ], "surname": "Murayama", "given_names": "Hitoshi", "full_name": "Murayama, Hitoshi" } ], "titles": [ { "source": "APS", "title": "Velocity Dependence from Resonant Self-Interacting Dark Matter" } ], "dois": [ { "value": "10.1103/PhysRevLett.122.071103" } ], "publication_info": [ { "journal_volume": "122", "journal_title": "Physical Review Letters", "material": "article", "journal_issue": "7", "year": 2019 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "acquisition_source": { "date": "2020-06-29T15:36:57.113962", "source": "APS", "method": "APS", "submission_number": "bca49440b8c511eaad8602163e01809a" }, "page_nr": [ 8 ], "license": [ { "url": "https://creativecommons.org/licenses/by/4.0/", "license": "CC-BY-4.0" } ], "copyright": [ { "statement": "Published by the American Physical Society", "year": "2019" } ], "control_number": "45798", "record_creation_date": "2019-02-22T14:30:15.139575", "_files": [ { "checksum": "md5:fa1f58abd162aa22e38e0d899fe24219", "filetype": "pdf", "bucket": "61333080-46ae-4f62-923b-e1e0382b4174", "version_id": "c9573e63-a401-4eb8-94d7-9295d6149b66", "key": "10.1103/PhysRevLett.122.071103.pdf", "size": 474136 }, { "checksum": "md5:ebd6bac6d355d1570166656533d4cce3", "filetype": "xml", "bucket": "61333080-46ae-4f62-923b-e1e0382b4174", "version_id": "102a95aa-f6b1-4a86-8761-88c19459e2a8", "key": "10.1103/PhysRevLett.122.071103.xml", "size": 165422 } ], "collections": [ { "primary": "HEP" }, { "primary": "Citeable" }, { "primary": "Published" } ], "arxiv_eprints": [ { "categories": [ "hep-ph", "astro-ph.HE" ], "value": "1810.04709" } ], "abstracts": [ { "source": "APS", "value": "The dark matter density distribution in small-scale astrophysical objects may indicate that dark matter is self-interacting, while observations from clusters of galaxies suggest that the corresponding cross section depends on the velocity. Using a model-independent approach, we show that resonant self-interacting dark matter can naturally explain such a behavior. In contrast to what is often assumed, this does not require a light mediator. We present explicit realizations of this mechanism and discuss the corresponding astrophysical constraints." } ], "imprints": [ { "date": "2019-02-22", "publisher": "APS" } ] }