Constraint on Neutrino Statistics from Cosmological Data
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866918078686691328 |
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| author | Dai, YiCheng Liao, Wei |
| author_facet | Dai, YiCheng Liao, Wei |
| contents | We investigate the impact of neutrino statistical property on cosmology and the constraints imposed by cosmological data on neutrino statistics. Cosmological data from probes such as Cosmic Microwave Background(CMB) radiation and Baryon Acoustic Oscillation(BAO) are used to constrain the statistical parameter of neutrino. This constraint is closely related to the degeneracy effects among neutrino statistical property, the sum of neutrino masses, and the Hubble constant. Our results show that purely bosonic neutrinos can be ruled out at 95\% confidence level and purely fermionic neutrinos are preferred. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_12264 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraint on Neutrino Statistics from Cosmological Data Dai, YiCheng Liao, Wei Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology We investigate the impact of neutrino statistical property on cosmology and the constraints imposed by cosmological data on neutrino statistics. Cosmological data from probes such as Cosmic Microwave Background(CMB) radiation and Baryon Acoustic Oscillation(BAO) are used to constrain the statistical parameter of neutrino. This constraint is closely related to the degeneracy effects among neutrino statistical property, the sum of neutrino masses, and the Hubble constant. Our results show that purely bosonic neutrinos can be ruled out at 95\% confidence level and purely fermionic neutrinos are preferred. |
| title | Constraint on Neutrino Statistics from Cosmological Data |
| topic | Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.12264 |