Continuum-mediated self-interacting dark matter

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity of California-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorChaffey, Ian-
Autor(es): dc.creatorFichet, Sylvain [UNESP]-
Autor(es): dc.creatorTanedo, Philip-
Data de aceite: dc.date.accessioned2022-02-22T00:51:30Z-
Data de disponibilização: dc.date.available2022-02-22T00:51:30Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/JHEP06(2021)008-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/207820-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/207820-
Descrição: dc.descriptionDark 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.-
Descrição: dc.descriptionDepartment of Physics & Astronomy University of California, 900 University Avenue-
Descrição: dc.descriptionICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo Ferraz-
Descrição: dc.descriptionICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo Ferraz-
Idioma: dc.languageen-
Relação: dc.relationJournal of High Energy Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectPhenomenology of Field Theories in Higher Dimensions-
Palavras-chave: dc.subjectStrings and branes phenomenology-
Título: dc.titleContinuum-mediated self-interacting dark matter-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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