Search for absorption of light fermionic dark matter by electron target in xenon dark matter detector

IF 4.5 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics Letters B Pub Date : 2025-07-23 DOI:10.1016/j.physletb.2025.139747

X.P. Geng , B. Zhong , Z.H. Zhang

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引用次数: 0

Abstract

A search for the absorption of light fermionic dark matter (DM) by electron target in xenon induced by vector (V) and axial-vector (A) operators is performed using the 1.16 tonne⋅year XENONnT electronic recoil data. With no significant signal observed, the one-sided 90% confidence level constraints on the effective coupling between fermionic DM and the electron (

σ_{e} v_{χ}

) for DM mass

m_{χ}

ranging from 2 to 180 keV with both V and A operators are derived as results. We present the most stringent constraint for

m_{χ}

ranging from 14 to 93 keV (9 to 60 keV) with V (A) operator, establishing them as the strongest DM direct detection experiment constraints for

m_{χ}

ranging from 2 to 180 keV, with the XENON1T hint excluded.

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氙暗物质探测器中电子靶对光费米子暗物质的吸收研究

利用1.16吨⋅年XENONnT电子反冲数据，研究了由矢量(V)和轴向矢量(A)算子诱导的氙中电子靶对光费米子暗物质（DM）的吸收。在没有观测到显著信号的情况下，推导出了费米子DM与电子（σevχ）之间有效耦合的单边90%置信水平约束，且DM质量mχ范围为2 ~ 180 keV，算符为V和A。我们用V (A)算子提出了对mχ范围从14到93 keV（9到60 keV）的最严格约束，并将它们建立为对mχ范围从2到180 keV的最强DM直接检测实验约束，排除了XENON1T提示。

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

Physics Letters B 物理-物理：综合

CiteScore

9.10

自引率

6.80%

发文量

647

审稿时长

3 months

期刊介绍： Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.