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Vector dark matter, inflation, and non-minimal couplings with gravity
Journal of Cosmology and Astroparticle Physics, Volume: 2024, Issue: 06, Start page: 003
Swansea University Authors: Ogan Ozsoy , Gianmassimo Tasinato
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DOI (Published version): 10.1088/1475-7516/2024/06/003
Abstract
We propose a cosmological dark matter production mechanism in the form of a longitudinal massive vector boson. We build upon the work [1] including non-minimal couplings of the massive vector with gravity, developing a well motivated set-up from an effective field theory perspective. We carefully tr...
Published in: | Journal of Cosmology and Astroparticle Physics |
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ISSN: | 1475-7516 |
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2024
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URI: | https://cronfa.swan.ac.uk/Record/cronfa67092 |
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v2 67092 2024-07-12 Vector dark matter, inflation, and non-minimal couplings with gravity bedcd6ceb7665b372690aff22dd18cec 0000-0001-8783-1728 Ogan Ozsoy Ogan Ozsoy true false cb754b073d1e4949c5e3db97744d3301 0000-0002-9835-4864 Gianmassimo Tasinato Gianmassimo Tasinato true false 2024-07-12 BGPS We propose a cosmological dark matter production mechanism in the form of a longitudinal massive vector boson. We build upon the work [1] including non-minimal couplings of the massive vector with gravity, developing a well motivated set-up from an effective field theory perspective. We carefully track the dynamics of vector field in passing from inflation to radiation dominated universe to show that the late time abundance of longitudinal modes — excited initially by the quantum fluctuations during inflation — can provide the observed dark matter abundance for sufficiently weak non-minimal coupling and wide range of vector masses 5 × 10-7 ≲ m [eV] ≲ 5 × 103. The final abundance of dark matter depends on two parameter, the vector mass and its non-minimal coupling with gravity. We discuss experimental venues to probe this framework, including the production of a stochastic gravitational wave background. The latter is especially interesting, as the same mechanism that generates dark matter can potentially lead to the production of gravitational waves in the LISA frequency band, through the second-order effects of large dark matter iso-curvature perturbations at small scales. We take a first step in this direction, identifying the potential information that gravitational wave experiments can provide on the parameter space of dark matter within this scenario. Journal Article Journal of Cosmology and Astroparticle Physics 2024 06 003 IOP Publishing 1475-7516 dark matter theory, inflation 5 6 2024 2024-06-05 10.1088/1475-7516/2024/06/003 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee 2024-08-30T13:40:42.0697554 2024-07-12T17:39:00.4686154 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Ogan Ozsoy 0000-0001-8783-1728 1 Gianmassimo Tasinato 0000-0002-9835-4864 2 67092__31188__286a3473110740d4baaebb52deeb1667.pdf 67092.VoR.pdf 2024-08-30T13:38:11.5838448 Output 4322293 application/pdf Version of Record true Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. true eng http://creativecommons.org/licenses/by/4.0 |
title |
Vector dark matter, inflation, and non-minimal couplings with gravity |
spellingShingle |
Vector dark matter, inflation, and non-minimal couplings with gravity Ogan Ozsoy Gianmassimo Tasinato |
title_short |
Vector dark matter, inflation, and non-minimal couplings with gravity |
title_full |
Vector dark matter, inflation, and non-minimal couplings with gravity |
title_fullStr |
Vector dark matter, inflation, and non-minimal couplings with gravity |
title_full_unstemmed |
Vector dark matter, inflation, and non-minimal couplings with gravity |
title_sort |
Vector dark matter, inflation, and non-minimal couplings with gravity |
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bedcd6ceb7665b372690aff22dd18cec cb754b073d1e4949c5e3db97744d3301 |
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bedcd6ceb7665b372690aff22dd18cec_***_Ogan Ozsoy cb754b073d1e4949c5e3db97744d3301_***_Gianmassimo Tasinato |
author |
Ogan Ozsoy Gianmassimo Tasinato |
author2 |
Ogan Ozsoy Gianmassimo Tasinato |
format |
Journal article |
container_title |
Journal of Cosmology and Astroparticle Physics |
container_volume |
2024 |
container_issue |
06 |
container_start_page |
003 |
publishDate |
2024 |
institution |
Swansea University |
issn |
1475-7516 |
doi_str_mv |
10.1088/1475-7516/2024/06/003 |
publisher |
IOP Publishing |
college_str |
Faculty of Science and Engineering |
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics |
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description |
We propose a cosmological dark matter production mechanism in the form of a longitudinal massive vector boson. We build upon the work [1] including non-minimal couplings of the massive vector with gravity, developing a well motivated set-up from an effective field theory perspective. We carefully track the dynamics of vector field in passing from inflation to radiation dominated universe to show that the late time abundance of longitudinal modes — excited initially by the quantum fluctuations during inflation — can provide the observed dark matter abundance for sufficiently weak non-minimal coupling and wide range of vector masses 5 × 10-7 ≲ m [eV] ≲ 5 × 103. The final abundance of dark matter depends on two parameter, the vector mass and its non-minimal coupling with gravity. We discuss experimental venues to probe this framework, including the production of a stochastic gravitational wave background. The latter is especially interesting, as the same mechanism that generates dark matter can potentially lead to the production of gravitational waves in the LISA frequency band, through the second-order effects of large dark matter iso-curvature perturbations at small scales. We take a first step in this direction, identifying the potential information that gravitational wave experiments can provide on the parameter space of dark matter within this scenario. |
published_date |
2024-06-05T13:40:41Z |
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1808816292331782144 |
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11.037056 |