Continuum-mediated self-interacting dark matter
dc.contributor.author | Chaffey, Ian | |
dc.contributor.author | Fichet, Sylvain [UNESP] | |
dc.contributor.author | Tanedo, Philip | |
dc.contributor.institution | University of California | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2021-06-25T11:01:36Z | |
dc.date.available | 2021-06-25T11:01:36Z | |
dc.date.issued | 2021-06-01 | |
dc.description.abstract | 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. | en |
dc.description.affiliation | Department of Physics & Astronomy University of California, 900 University Avenue | |
dc.description.affiliation | ICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo Ferraz | |
dc.description.affiliationUnesp | ICTP SAIFR & IFT-UNESP, R. Dr. Bento Teobaldo Ferraz | |
dc.identifier | http://dx.doi.org/10.1007/JHEP06(2021)008 | |
dc.identifier.citation | Journal of High Energy Physics, v. 2021, n. 6, 2021. | |
dc.identifier.doi | 10.1007/JHEP06(2021)008 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.scopus | 2-s2.0-85107134038 | |
dc.identifier.uri | http://hdl.handle.net/11449/207820 | |
dc.language.iso | eng | |
dc.relation.ispartof | Journal of High Energy Physics | |
dc.source | Scopus | |
dc.subject | Phenomenology of Field Theories in Higher Dimensions | |
dc.subject | Strings and branes phenomenology | |
dc.title | Continuum-mediated self-interacting dark matter | en |
dc.type | Artigo | |
dspace.entity.type | Publication | |
unesp.author.orcid | 0000-0003-4911-9259[1] | |
unesp.author.orcid | 0000-0003-4642-2199[3] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Instituto de Física Teórica (IFT), São Paulo | pt |