Sensitivity of JWST to eV-Scale Decaying Axion Dark Matter

IF 9 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY Physical review letters Pub Date : 2025-02-18 DOI:10.1103/physrevlett.134.071003

Sandip Roy, Carlos Blanco, Christopher Dessert, Anirudh Prabhu, Tea Temim

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Abstract

The recently launched James Webb Space Telescope can resolve eV-scale emission lines arising from dark matter decay. We forecast the end-of-mission sensitivity to the decay of axions, a leading dark matter candidate, in the Milky Way using the blank-sky observations expected during standard operations. Searching for unassociated emission lines will constrain axions in the mass range 0.18 to 2.6 eV with axion-photon couplings gaγγ≳5.5×10−12GeV−1. In particular, these results will constrain nucleophobic QCD axions to masses ≲0.2 eV.

Published by the American Physical Society

2025

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JWST对ev尺度轴子衰变暗物质的灵敏度

最近发射的詹姆斯韦伯太空望远镜可以分辨出暗物质衰变产生的ev尺度发射线。我们预测了任务结束时对轴子衰变的敏感度，轴子是主要的暗物质候选者，在银河系中使用标准操作期间预期的空白天空观测。寻找不相关的发射谱线将约束质量范围为0.18 ~ 2.6 eV的轴子，轴子-光子耦合为gaγγ￣5.5×10−12GeV−1。特别地，这些结果将把憎核QCD轴子约束在质量≤0.2 eV。2025年由美国物理学会出版

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

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks