相干弹性中微子核散射第一次CONUS+测量的意义

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-04-22 DOI:10.1103/physrevd.111.075025

V. De Romeri, D. K. Papoulias, G. Sanchez Garcia

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引用次数: 0

摘要

CONUS+合作报告了他们第一次观测到相干弹性中微子核散射（CEνNS）。实验使用反应堆电子反中微子和反冲阈值低至160 eVee的锗探测器。当暴露量为327 kg×d时，测量的统计显著性为3.7σ。我们在标准模型和新物理学的背景下探讨了这一观察的几个物理含义。我们着重于弱混合角的确定，非标准和广义中微子与重介质和轻介质的相互作用，中微子磁矩，以及中微子通过不育偶极子门户和新介质向不育费米子的上散射。我们的结果突出了基于反应堆的CEνNS实验在探测大量中微子性质和新物理模型方面的作用。2025年由美国物理学会出版

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Implications of the first CONUS+ measurement of coherent elastic neutrino-nucleus scattering

The CONUS+ collaboration has reported their first observation of coherent elastic neutrino-nucleus scattering (CEνNS). The experiment uses reactor electron antineutrinos and germanium detectors with recoil thresholds as low as 160 eVee. With an exposure of 327 kg×d, the measurement was made with a statistical significance of 3.7σ. We explore several physics implications of this observation, both within the standard model and in the context of new physics. We focus on a determination of the weak mixing angle, nonstandard and generalized neutrino interactions both with heavy and light mediators, neutrino magnetic moments, and the up-scattering of neutrinos into sterile fermions through the sterile dipole portal and new mediators. Our results highlight the role of reactor-based CEνNS experiments in probing a vast array of neutrino properties and new physics models.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.