Continuum-mediated self-interacting dark matter
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/JHEP06(2021)008 http://hdl.handle.net/11449/207820 |
Resumo: | Dark matter may self-interact through a continuum of low-mass states. This happens if dark matter couples to a strongly-coupled nearly-conformal hidden sector. This type of theory is holographically described by brane-localized dark matter interacting with bulk fields in a slice of 5D anti-de Sitter space. The long-range potential in this scenario depends on a non-integer power of the spatial separation, in contrast to the Yukawa potential generated by the exchange of a single 4D mediator. The resulting self-interaction cross section scales like a non-integer power of velocity. We identify the Born, classical and resonant regimes and investigate them using state-of-the-art numerical methods. We demonstrate the viability of our continuum-mediated framework to address the astrophysical small-scale structure anomalies. Investigating the continuum-mediated Sommerfeld enhancement, we demonstrate that a pattern of resonances can occur depending on the non-integer power. We conclude that continuum mediators introduce novel power-law scalings which open new possibilities for dark matter self-interaction phenomenology. |
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Repositório Institucional da UNESP |
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Continuum-mediated self-interacting dark matterPhenomenology of Field Theories in Higher DimensionsStrings and branes phenomenologyDark matter may self-interact through a continuum of low-mass states. This happens if dark matter couples to a strongly-coupled nearly-conformal hidden sector. This type of theory is holographically described by brane-localized dark matter interacting with bulk fields in a slice of 5D anti-de Sitter space. The long-range potential in this scenario depends on a non-integer power of the spatial separation, in contrast to the Yukawa potential generated by the exchange of a single 4D mediator. The resulting self-interaction cross section scales like a non-integer power of velocity. We identify the Born, classical and resonant regimes and investigate them using state-of-the-art numerical methods. We demonstrate the viability of our continuum-mediated framework to address the astrophysical small-scale structure anomalies. Investigating the continuum-mediated Sommerfeld enhancement, we demonstrate that a pattern of resonances can occur depending on the non-integer power. We conclude that continuum mediators introduce novel power-law scalings which open new possibilities for dark matter self-interaction phenomenology.Department of Physics & Astronomy University of California, 900 University AvenueICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo FerrazICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo FerrazUniversity of CaliforniaUniversidade Estadual Paulista (Unesp)Chaffey, IanFichet, Sylvain [UNESP]Tanedo, Philip2021-06-25T11:01:36Z2021-06-25T11:01:36Z2021-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/JHEP06(2021)008Journal of High Energy Physics, v. 2021, n. 6, 2021.1029-8479http://hdl.handle.net/11449/20782010.1007/JHEP06(2021)0082-s2.0-85107134038Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of High Energy Physicsinfo:eu-repo/semantics/openAccess2021-10-23T17:46:00Zoai:repositorio.unesp.br:11449/207820Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T17:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Continuum-mediated self-interacting dark matter |
title |
Continuum-mediated self-interacting dark matter |
spellingShingle |
Continuum-mediated self-interacting dark matter Chaffey, Ian Phenomenology of Field Theories in Higher Dimensions Strings and branes phenomenology |
title_short |
Continuum-mediated self-interacting dark matter |
title_full |
Continuum-mediated self-interacting dark matter |
title_fullStr |
Continuum-mediated self-interacting dark matter |
title_full_unstemmed |
Continuum-mediated self-interacting dark matter |
title_sort |
Continuum-mediated self-interacting dark matter |
author |
Chaffey, Ian |
author_facet |
Chaffey, Ian Fichet, Sylvain [UNESP] Tanedo, Philip |
author_role |
author |
author2 |
Fichet, Sylvain [UNESP] Tanedo, Philip |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
University of California Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Chaffey, Ian Fichet, Sylvain [UNESP] Tanedo, Philip |
dc.subject.por.fl_str_mv |
Phenomenology of Field Theories in Higher Dimensions Strings and branes phenomenology |
topic |
Phenomenology of Field Theories in Higher Dimensions Strings and branes phenomenology |
description |
Dark matter may self-interact through a continuum of low-mass states. This happens if dark matter couples to a strongly-coupled nearly-conformal hidden sector. This type of theory is holographically described by brane-localized dark matter interacting with bulk fields in a slice of 5D anti-de Sitter space. The long-range potential in this scenario depends on a non-integer power of the spatial separation, in contrast to the Yukawa potential generated by the exchange of a single 4D mediator. The resulting self-interaction cross section scales like a non-integer power of velocity. We identify the Born, classical and resonant regimes and investigate them using state-of-the-art numerical methods. We demonstrate the viability of our continuum-mediated framework to address the astrophysical small-scale structure anomalies. Investigating the continuum-mediated Sommerfeld enhancement, we demonstrate that a pattern of resonances can occur depending on the non-integer power. We conclude that continuum mediators introduce novel power-law scalings which open new possibilities for dark matter self-interaction phenomenology. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T11:01:36Z 2021-06-25T11:01:36Z 2021-06-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/JHEP06(2021)008 Journal of High Energy Physics, v. 2021, n. 6, 2021. 1029-8479 http://hdl.handle.net/11449/207820 10.1007/JHEP06(2021)008 2-s2.0-85107134038 |
url |
http://dx.doi.org/10.1007/JHEP06(2021)008 http://hdl.handle.net/11449/207820 |
identifier_str_mv |
Journal of High Energy Physics, v. 2021, n. 6, 2021. 1029-8479 10.1007/JHEP06(2021)008 2-s2.0-85107134038 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of High Energy Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789894370656256 |