暗物质的“直接探测”实验如何工作？
How do dark-matter direct-detection experiments work?
地下实验室（如XENONnT、LZ、PandaX）用极纯液体闪烁体等待暗物质粒子撞上原子核产生微弱闪光，靠深埋地下屏蔽宇宙射线本底。
Underground labs (XENONnT, LZ, PandaX) use ultrapure scintillators to wait for a dark-matter particle to nudge a nucleus into a faint flash, shielded deep underground from cosmic-ray background.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 来源待核验 · Source pending review
来源 · Source
出处备注：此条未指向带版次的可引用著作（通识性内容、机构文件或未展开的英文书名），本库不提供独立书目出处；如需精确引用，需由编辑补全具体篇目与版次。
XENON / LZ 暗物质直接探测实验（液氙时间投影室）
XENON / LZ dark matter direct-detection experiments
#直接探测 #XENON #地下实验
什么是轴子（axion），它为何是热门候选？
What is an axion and why is it a popular candidate?
轴子是一种极轻、弱相互作用的假想粒子，原为解决强CP问题提出，其质量与耦合恰好可能解释暗物质，正被腔体实验（如ADMX）搜寻。
The axion is a hypothetical, extremely light, weakly interacting particle, originally proposed to solve the strong CP problem; its properties could explain dark matter and are hunted in cavity experiments like ADMX.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Carroll & Ostlie,《An Introduction to Modern Astrophysics》第2版,Cambridge University Press,2017
B. W. Carroll and D. A. Ostlie, An Introduction to Modern Astrophysics, 2nd ed., Cambridge University Press, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-1-108-42216-1 (2nd ed., Cambridge Univ. Press)
#轴子 #CP问题 #暗物质
如何通过伽马射线“间接”寻找暗物质？
How can gamma rays indirectly reveal dark matter?
若暗物质粒子相互湮灭或衰变，会在银河系中心等密集区产生特征伽马射线能谱，费米望远镜正寻找这种超出本底的超出信号。
If dark-matter particles annihilate or decay, they would produce a characteristic gamma-ray spectrum in dense regions like the Galactic Center; Fermi searches for such an excess above known backgrounds.
难度 专业 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Carroll & Ostlie,《An Introduction to Modern Astrophysics》第2版,Cambridge University Press,2017
B. W. Carroll and D. A. Ostlie, An Introduction to Modern Astrophysics, 2nd ed., Cambridge University Press, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-1-108-42216-1 (2nd ed., Cambridge Univ. Press)
#间接探测 #伽马射线 #湮灭
原初黑洞能解释暗物质吗？
Can primordial black holes explain dark matter?
原初黑洞是宇宙极早期由密度涨落直接坍缩形成的黑洞，若质量分布合适可贡献部分暗物质，但微引力透镜与微波背景约束已排除了多数质量窗口。
Primordial black holes formed from density fluctuations in the very early Universe could account for some dark matter, but microlensing and CMB constraints have ruled out most mass windows.
难度 进阶 · 适合 高中(15-18)
CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source
Carroll & Ostlie,《An Introduction to Modern Astrophysics》第2版,Cambridge University Press,2017
B. W. Carroll and D. A. Ostlie, An Introduction to Modern Astrophysics, 2nd ed., Cambridge University Press, 2017
独立核验依据 · Independent verification: 核验依据 2 ISBN 978-1-108-42216-1 (2nd ed., Cambridge Univ. Press)
#原初黑洞 #引力透镜 #约束