Analytic study of dark photon and gravitational wave production from axion
Abstract Axion-like fields heavier than about 10 −27 eV are expected to oscillate in the radiation dominated epoch when the Hubble parameter drops below their mass. Considering the Chern-Simons coupling with a dark gauge boson, large amount of dark photons are produced during a short time interval t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2021-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2021)043 |
| _version_ | 1818738224696131584 |
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| author | Borna Salehian Mohammad Ali Gorji Shinji Mukohyama Hassan Firouzjahi |
| author_facet | Borna Salehian Mohammad Ali Gorji Shinji Mukohyama Hassan Firouzjahi |
| author_sort | Borna Salehian |
| collection | DOAJ |
| description | Abstract Axion-like fields heavier than about 10 −27 eV are expected to oscillate in the radiation dominated epoch when the Hubble parameter drops below their mass. Considering the Chern-Simons coupling with a dark gauge boson, large amount of dark photons are produced during a short time interval through tachyonic resonance instability. The produced dark photons then source gravitational tensor modes leading to chiral gravitational waves. Through this process, one can indirectly probe a large parameter space of coupled axion-dark photon models. In this work we first find an analytic expression for the number density of the dark photons produced during the tachyonic resonance regime. Second, by using the saddle point approximation we find an analytic expression for the gravitational wave spectrum in terms of the mass, coupling and misalignment angle. Our analytic results can be used for the observational analysis of these types of scenarios. |
| first_indexed | 2024-12-18T01:05:33Z |
| format | Article |
| id | doaj.art-a271931d3fca41d7b848b066f3d56853 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-18T01:05:33Z |
| publishDate | 2021-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-a271931d3fca41d7b848b066f3d568532022-12-21T21:26:14ZengSpringerOpenJournal of High Energy Physics1029-84792021-05-012021514610.1007/JHEP05(2021)043Analytic study of dark photon and gravitational wave production from axionBorna Salehian0Mohammad Ali Gorji1Shinji Mukohyama2Hassan Firouzjahi3School of Astronomy, Institute for Research in Fundamental Sciences (IPM)Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto UniversityCenter for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto UniversitySchool of Astronomy, Institute for Research in Fundamental Sciences (IPM)Abstract Axion-like fields heavier than about 10 −27 eV are expected to oscillate in the radiation dominated epoch when the Hubble parameter drops below their mass. Considering the Chern-Simons coupling with a dark gauge boson, large amount of dark photons are produced during a short time interval through tachyonic resonance instability. The produced dark photons then source gravitational tensor modes leading to chiral gravitational waves. Through this process, one can indirectly probe a large parameter space of coupled axion-dark photon models. In this work we first find an analytic expression for the number density of the dark photons produced during the tachyonic resonance regime. Second, by using the saddle point approximation we find an analytic expression for the gravitational wave spectrum in terms of the mass, coupling and misalignment angle. Our analytic results can be used for the observational analysis of these types of scenarios.https://doi.org/10.1007/JHEP05(2021)043Cosmology of Theories beyond the SMBeyond Standard Model |
| spellingShingle | Borna Salehian Mohammad Ali Gorji Shinji Mukohyama Hassan Firouzjahi Analytic study of dark photon and gravitational wave production from axion Journal of High Energy Physics Cosmology of Theories beyond the SM Beyond Standard Model |
| title | Analytic study of dark photon and gravitational wave production from axion |
| title_full | Analytic study of dark photon and gravitational wave production from axion |
| title_fullStr | Analytic study of dark photon and gravitational wave production from axion |
| title_full_unstemmed | Analytic study of dark photon and gravitational wave production from axion |
| title_short | Analytic study of dark photon and gravitational wave production from axion |
| title_sort | analytic study of dark photon and gravitational wave production from axion |
| topic | Cosmology of Theories beyond the SM Beyond Standard Model |
| url | https://doi.org/10.1007/JHEP05(2021)043 |
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