Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866912295715602432 |
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| author | Yi, Zhu You, Zhi-Qiang Wu, You Chen, Zu-Cheng Liu, Lang |
| author_facet | Yi, Zhu You, Zhi-Qiang Wu, You Chen, Zu-Cheng Liu, Lang |
| contents | The data recently released by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) provides compelling evidence supporting the existence of a stochastic signal that aligns with a gravitational-wave background. We show that the scalar-induced gravitational waves from the Higgs inflation model with the parametric amplification mechanism can explain this signal. Such a gravitational-wave background naturally predicts the substantial existence of planet-mass primordial black holes, which can be planet 9 in our solar system and the lensing objects for the ultrashort-timescale microlensing events observed by the Optical Gravitational Lensing Experiment. Therefore, the NANOGrav signal, the potential Planet 9 in our solar system, and the Optical Gravitational Lensing Experiment can be explained within the framework of Higgs inflation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_14688 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation Yi, Zhu You, Zhi-Qiang Wu, You Chen, Zu-Cheng Liu, Lang Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology The data recently released by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) provides compelling evidence supporting the existence of a stochastic signal that aligns with a gravitational-wave background. We show that the scalar-induced gravitational waves from the Higgs inflation model with the parametric amplification mechanism can explain this signal. Such a gravitational-wave background naturally predicts the substantial existence of planet-mass primordial black holes, which can be planet 9 in our solar system and the lensing objects for the ultrashort-timescale microlensing events observed by the Optical Gravitational Lensing Experiment. Therefore, the NANOGrav signal, the potential Planet 9 in our solar system, and the Optical Gravitational Lensing Experiment can be explained within the framework of Higgs inflation. |
| title | Exploring the NANOGrav Signal and Planet-mass Primordial Black Holes through Higgs Inflation |
| topic | Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2308.14688 |