Dark photon dark matter from a network of cosmic strings

We study the production of ultralight dark photons from a network of near-global, Abelian-Higgs cosmic strings. We find that dark photons produced in this way are nonrelativistic today and can make up all of the dark matter for dark photon masses as small as m A ~ 10 −22 eV.

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Bibliographic Details
Published in:Physical review. D 2019-03, Vol.99 (6), Article 063529
Main Authors: Long, Andrew J., Wang, Lian-Tao
Format: Article
Language:English
Subjects:
ASTRONOMY AND ASTROPHYSICS
Cosmic strings & domain walls
Dark matter
Photons
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Strings
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Summary:We study the production of ultralight dark photons from a network of near-global, Abelian-Higgs cosmic strings. We find that dark photons produced in this way are nonrelativistic today and can make up all of the dark matter for dark photon masses as small as m A ~ 10 −22 eV.
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.99.063529