Constraint on neutrino statistics from cosmological data

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Journal of Cosmology and Astroparticle Physics Pub Date : 2025-06-26 DOI:10.1088/1475-7516/2025/06/056

YiCheng Dai and Wei Liao

引用次数: 0

Abstract

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.

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宇宙学数据对中微子统计量的约束

我们研究了中微子统计性质对宇宙学的影响以及宇宙学数据对中微子统计的约束。来自宇宙微波背景辐射（CMB）和重子声学振荡（BAO）等探测器的宇宙学数据被用来约束中微子的统计参数。这一约束与中微子统计性质、中微子质量和哈勃常数之间的简并效应密切相关。我们的结果表明，纯玻色子中微子可以在95%的置信水平上被排除。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.