Probing Long-Range Forces Between Neutrinos with Cosmic Structures
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916663338729472 |
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| author | Kaplan, David E. Luo, Xuheng Rajendran, Surjeet |
| author_facet | Kaplan, David E. Luo, Xuheng Rajendran, Surjeet |
| contents | We study the consequences of new long-range forces between neutrinos on cosmic scales. If these forces are a few orders of magnitude stronger than gravity, they can induce perturbation instability in the non-relativistic cosmic neutrino background in the late time universe. As a result, the cosmic neutrino background may form nonlinear bound states instead of free-streaming. The implications of the formation of nonlinear neutrino bound states include enhancing matter perturbations and triggering star formation. Based on existing measurements of the matter power spectrum and reionization history, we place new constraints on long-range forces between neutrinos with ranges lying in $1 \text{ kpc}\lesssim m_ϕ^{-1} \lesssim 10 \text{ Mpc}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_20766 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Probing Long-Range Forces Between Neutrinos with Cosmic Structures Kaplan, David E. Luo, Xuheng Rajendran, Surjeet High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics We study the consequences of new long-range forces between neutrinos on cosmic scales. If these forces are a few orders of magnitude stronger than gravity, they can induce perturbation instability in the non-relativistic cosmic neutrino background in the late time universe. As a result, the cosmic neutrino background may form nonlinear bound states instead of free-streaming. The implications of the formation of nonlinear neutrino bound states include enhancing matter perturbations and triggering star formation. Based on existing measurements of the matter power spectrum and reionization history, we place new constraints on long-range forces between neutrinos with ranges lying in $1 \text{ kpc}\lesssim m_ϕ^{-1} \lesssim 10 \text{ Mpc}$. |
| title | Probing Long-Range Forces Between Neutrinos with Cosmic Structures |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2412.20766 |