Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.astropartphys.2015.10.010 http://hdl.handle.net/11449/161064 |
Resumo: | We discuss a particular secluded WIMP dark matter model consisting of neutral fermions as the dark matter candidate and a Proca-Wentzel (PW) field as a mediator. In the model that we consider here, dark matter WIMPs interact with standard model (SM) particles only through the PW field of similar to MeV-multi-GeV mass particles. The interactions occur via a U(1)' mediator, V-mu', which couples to the SM by kinetic mixing with U(1) hypercharge bosons, B-mu'. One important difference between our model and other such models in the literature is the absence of an extra singlet scalar, so that the parameter with dimension of mass M-V(2) is not related to a spontaneous symmetry breaking. This QED based model is also renormalizable. The mass scale of the mediator and the absence of the singlet scalar can lead to interesting astrophysical signatures. The dominant annihilation channels are different from those usually considered in previous work. We show that the GeV-energy gamma-ray excess in the galactic center region, as derived from Fermi-LAT Gamma-ray Space Telescope data, can be attributed to such secluded dark matter WIMPs, given parameters of the model that are consistent with both the cosmological dark matter density and the upper limits on WIMP spin-independent elastic scattering. Secluded WIMP models are also consistent with suggested upper limits on a DM contribution to the cosmic-ray antiproton flux. Published by Elsevier B.V. |
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Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excessSecluded dark matterGamma-raysAntiprotonsWe discuss a particular secluded WIMP dark matter model consisting of neutral fermions as the dark matter candidate and a Proca-Wentzel (PW) field as a mediator. In the model that we consider here, dark matter WIMPs interact with standard model (SM) particles only through the PW field of similar to MeV-multi-GeV mass particles. The interactions occur via a U(1)' mediator, V-mu', which couples to the SM by kinetic mixing with U(1) hypercharge bosons, B-mu'. One important difference between our model and other such models in the literature is the absence of an extra singlet scalar, so that the parameter with dimension of mass M-V(2) is not related to a spontaneous symmetry breaking. This QED based model is also renormalizable. The mass scale of the mediator and the absence of the singlet scalar can lead to interesting astrophysical signatures. The dominant annihilation channels are different from those usually considered in previous work. We show that the GeV-energy gamma-ray excess in the galactic center region, as derived from Fermi-LAT Gamma-ray Space Telescope data, can be attributed to such secluded dark matter WIMPs, given parameters of the model that are consistent with both the cosmological dark matter density and the upper limits on WIMP spin-independent elastic scattering. Secluded WIMP models are also consistent with suggested upper limits on a DM contribution to the cosmic-ray antiproton flux. Published by Elsevier B.V.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, BrazilNASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USAUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, BrazilFAPESP: 14/05505-6FAPESP: 11/21945-8Elsevier B.V.Universidade Estadual Paulista (Unesp)NASAFortes, E. C. F. S. [UNESP]Pleitez, V. [UNESP]Stecker, F. W.2018-11-26T16:18:59Z2018-11-26T16:18:59Z2016-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article87-95application/pdfhttp://dx.doi.org/10.1016/j.astropartphys.2015.10.010Astroparticle Physics. Amsterdam: Elsevier Science Bv, v. 74, p. 87-95, 2016.0927-6505http://hdl.handle.net/11449/16106410.1016/j.astropartphys.2015.10.010WOS:000366784200012WOS000366784200012.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAstroparticle Physics1,242info:eu-repo/semantics/openAccess2023-12-24T06:21:53Zoai:repositorio.unesp.br:11449/161064Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-24T06:21:53Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
title |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
spellingShingle |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess Fortes, E. C. F. S. [UNESP] Secluded dark matter Gamma-rays Antiprotons |
title_short |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
title_full |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
title_fullStr |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
title_full_unstemmed |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
title_sort |
Secluded WIMPs, dark QED with massive photons, and the galactic center gamma-ray excess |
author |
Fortes, E. C. F. S. [UNESP] |
author_facet |
Fortes, E. C. F. S. [UNESP] Pleitez, V. [UNESP] Stecker, F. W. |
author_role |
author |
author2 |
Pleitez, V. [UNESP] Stecker, F. W. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) NASA |
dc.contributor.author.fl_str_mv |
Fortes, E. C. F. S. [UNESP] Pleitez, V. [UNESP] Stecker, F. W. |
dc.subject.por.fl_str_mv |
Secluded dark matter Gamma-rays Antiprotons |
topic |
Secluded dark matter Gamma-rays Antiprotons |
description |
We discuss a particular secluded WIMP dark matter model consisting of neutral fermions as the dark matter candidate and a Proca-Wentzel (PW) field as a mediator. In the model that we consider here, dark matter WIMPs interact with standard model (SM) particles only through the PW field of similar to MeV-multi-GeV mass particles. The interactions occur via a U(1)' mediator, V-mu', which couples to the SM by kinetic mixing with U(1) hypercharge bosons, B-mu'. One important difference between our model and other such models in the literature is the absence of an extra singlet scalar, so that the parameter with dimension of mass M-V(2) is not related to a spontaneous symmetry breaking. This QED based model is also renormalizable. The mass scale of the mediator and the absence of the singlet scalar can lead to interesting astrophysical signatures. The dominant annihilation channels are different from those usually considered in previous work. We show that the GeV-energy gamma-ray excess in the galactic center region, as derived from Fermi-LAT Gamma-ray Space Telescope data, can be attributed to such secluded dark matter WIMPs, given parameters of the model that are consistent with both the cosmological dark matter density and the upper limits on WIMP spin-independent elastic scattering. Secluded WIMP models are also consistent with suggested upper limits on a DM contribution to the cosmic-ray antiproton flux. Published by Elsevier B.V. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-02-01 2018-11-26T16:18:59Z 2018-11-26T16:18:59Z |
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/10.1016/j.astropartphys.2015.10.010 Astroparticle Physics. Amsterdam: Elsevier Science Bv, v. 74, p. 87-95, 2016. 0927-6505 http://hdl.handle.net/11449/161064 10.1016/j.astropartphys.2015.10.010 WOS:000366784200012 WOS000366784200012.pdf |
url |
http://dx.doi.org/10.1016/j.astropartphys.2015.10.010 http://hdl.handle.net/11449/161064 |
identifier_str_mv |
Astroparticle Physics. Amsterdam: Elsevier Science Bv, v. 74, p. 87-95, 2016. 0927-6505 10.1016/j.astropartphys.2015.10.010 WOS:000366784200012 WOS000366784200012.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Astroparticle Physics 1,242 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
87-95 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1803650075214217216 |