文献类型：期刊文献

英文题名：Constraint on neutrino statistics from cosmological data

作者：Dai, YiCheng[1];Liao, Wei[1]

机构：[1]East China Univ Sci & Technol, Sch Phys, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2025

期号：6

外文期刊名：JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS

收录：;EI(收录号：20250050542);WOS:【SCI-EXPANDED(收录号:WOS:001522131000008)】；

基金：W. Liao is supported by National Natural Science Foundation of China under the grant No. 11875130. The authors are grateful to the anonymous referee for the careful reading of the manuscript and many insightful suggestions.

语种：英文

外文关键词：baryon acoustic oscillations; cosmological parameters from CMBR; neutrino properties

摘要：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.