遗迹中微子探测小尺度原初非高斯性
Relic Neutrinos Probing Small Scale Primordial Non-Gaussianity
- Virtual Institute of Astroparticle Physics(虚拟高能天体物理研究所)
- KEK Theory Center, Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK)(高能加速器研究机构粒子与核学研究所KEK理论中心)
- Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University(名古屋大学小林-益川粒子宇宙起源研究所)
- ICREA(加泰罗尼亚高级研究院)
- Institute of Space Sciences (ICE-CSIC)(空间科学研究所(ICE-CSIC))
- Institut d’Estudis Espacials de Catalunya (IEEC)(加泰罗尼亚空间研究学院(IEEC))
- Department of Physics and Astronomy, Vanderbilt University(范德堡大学物理与天文学系)
机构由 AI 辅助整理,请以论文原文为准。
AI总结:
该研究利用遗迹中微子记录电磁熵产生,通过声学阻尼推导出三次光子数源和折叠双谱窗口,建立响应核,从而将小尺度原初非高斯性与中微子捕获率直接关联。
AI中文摘要:
遗迹中微子保留了中微子退耦后电磁熵产生的记录,探测了从原初CMB中抹去的原初模式。我们从声学阻尼中推导出三次光子数源及其前导折叠敏感双谱窗口,将中微子退耦、热化与声学相干性结合在单一响应核中。对于激发初态,该核过滤物理折叠轮廓,并产生依赖于尖锐度的透射条件,直接将小尺度原初非高斯性与遗迹中微子捕获率联系起来。
英文摘要:
Relic neutrinos retain a record of electromagnetic entropy production after neutrino decoupling, probing primordial modes erased from the primary CMB. We derive the cubic photon number source from acoustic damping and its leading folded sensitive bispectrum window, with neutrino decoupling, thermalization, and acoustic coherence combined in a single response kernel. For excited initial states, this kernel filters the physical folded profile and yields a sharpness dependent transmission condition, directly connecting small scale primordial non-Gaussianity to relic neutrino capture rates.