Light dark photon dark matter from inflation

We discuss the possibility of producing a light dark photon dark matter through a coupling between the dark photon field and the inflaton. The dark photon with a large wavelength is efficiently produced due to the inflaton motion during inflation and becomes non-relativistic before the time of matte...

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Detalles Bibliográficos
Autores principales: Nakai, Yuichiro, Namba, Ryo, Wang, Ziwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2020
Materias:
Regular Article - Theoretical Physics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7768992/
https://www.ncbi.nlm.nih.gov/pubmed/33390726
http://dx.doi.org/10.1007/JHEP12(2020)170
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author Nakai, Yuichiro
Namba, Ryo
Wang, Ziwei
author_facet Nakai, Yuichiro
Namba, Ryo
Wang, Ziwei
author_sort Nakai, Yuichiro
collection PubMed
description We discuss the possibility of producing a light dark photon dark matter through a coupling between the dark photon field and the inflaton. The dark photon with a large wavelength is efficiently produced due to the inflaton motion during inflation and becomes non-relativistic before the time of matter-radiation equality. We compute the amount of production analytically. The correct relic abundance is realized with a dark photon mass extending down to 10(−21) eV.
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spelling pubmed-77689922020-12-28 Light dark photon dark matter from inflation Nakai, Yuichiro Namba, Ryo Wang, Ziwei J High Energy Phys Regular Article - Theoretical Physics We discuss the possibility of producing a light dark photon dark matter through a coupling between the dark photon field and the inflaton. The dark photon with a large wavelength is efficiently produced due to the inflaton motion during inflation and becomes non-relativistic before the time of matter-radiation equality. We compute the amount of production analytically. The correct relic abundance is realized with a dark photon mass extending down to 10(−21) eV. Springer Berlin Heidelberg 2020-12-28 2020 /pmc/articles/PMC7768992/ /pubmed/33390726 http://dx.doi.org/10.1007/JHEP12(2020)170 Text en © The Author(s) 2020 https://creativecommons.org/licenses/by/4.0/Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) ), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Regular Article - Theoretical Physics
Nakai, Yuichiro
Namba, Ryo
Wang, Ziwei
Light dark photon dark matter from inflation
title Light dark photon dark matter from inflation
title_full Light dark photon dark matter from inflation
title_fullStr Light dark photon dark matter from inflation
title_full_unstemmed Light dark photon dark matter from inflation
title_short Light dark photon dark matter from inflation
title_sort light dark photon dark matter from inflation
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7768992/
https://www.ncbi.nlm.nih.gov/pubmed/33390726
http://dx.doi.org/10.1007/JHEP12(2020)170
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AT nambaryo lightdarkphotondarkmatterfrominflation
AT wangziwei lightdarkphotondarkmatterfrominflation

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