Gravitational wave and dark matter from Axion-Higgs string
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916668199927808 |
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| author | Jia, Yongtao Bian, Ligong |
| author_facet | Jia, Yongtao Bian, Ligong |
| contents | Axions have long been considered plausible candidates for dark matter. The axion dark matter emitted from cosmic strings after the Peccei-Quinn (PQ) symmetry breaking in the early Universe was extensively simulated. In this work, we study dark matter and gravitational waves through the lattice simulation of the Axion-Higgs string. We gave the dark matter overproduction and the Big Bang nucleosynthesis bounds on the axion decay constant $f_a$ and the axion mass $m_a$ for axion-like particles, and found that the predicted gravitational wave spectra cannot be probed by the dataset of the current pulsar timing array experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_04218 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Gravitational wave and dark matter from Axion-Higgs string Jia, Yongtao Bian, Ligong High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory Axions have long been considered plausible candidates for dark matter. The axion dark matter emitted from cosmic strings after the Peccei-Quinn (PQ) symmetry breaking in the early Universe was extensively simulated. In this work, we study dark matter and gravitational waves through the lattice simulation of the Axion-Higgs string. We gave the dark matter overproduction and the Big Bang nucleosynthesis bounds on the axion decay constant $f_a$ and the axion mass $m_a$ for axion-like particles, and found that the predicted gravitational wave spectra cannot be probed by the dataset of the current pulsar timing array experiments. |
| title | Gravitational wave and dark matter from Axion-Higgs string |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.04218 |