We present the current status of geo-neutrino measurements and their implications for radiogenic heating in the mantle. Earth models predict different levels of radiogenic heating and, therefore, different geo-neutrino fluxes from the mantle. Seismic tomography reveals features in the deep mantle possibly correlated with radiogenic heating and causing spatial variations in the mantle geo-neutrino flux at the Earth surface. An ocean-based observatory offers the greatest sensitivity to the mantle flux and potential for resolving Earth models and mantle features. Refinements to estimates of the geo-neutrino flux from continental crust reduce uncertainty in measurements of the mantle flux, especially measurements from land-based observatories. These refinements enable the resolution of Earth models using the combined measurements from multiple continental observatories.
Sensitivity of neutrino oscillations to the Earth's interior properties
Université Paris Cité(巴黎西岱大学);CNRS(法国国家科学研究中心);Astroparticule et Cosmologie(粒子天体物理与宇宙学);Institut de physique du globe de Paris(巴黎地球物理研究所);Institut universitaire de France(法兰西学院);Université Claude Bernard Lyon 1(里昂第一大学);ENS de Lyon(里昂高等师范学院);LGL-TPE(地球、行星与环境实验室);University of Idaho(爱达荷大学)
Neutrino oscillation tomography of the Earth with KM3NeT-ORCA
KM 3 NeT-ORCA是一个水切伦科夫中微子探测器,设计用于研究大气中微子振荡,主要目标是测量中微子质量有序。穿过地球的大气中微子受到物质效应的影响,改变了它们的味道振荡模式。因此,对ORCA中中微子事件的角度和能量分布的研究可以提供关于地球内部的层析成像信息,这是对标准地球物理学方法的补充。基于探测器响应的完整蒙特卡罗模拟的初步估计表明,经过十年的运行,电子密度可以在地幔中以3-5%的精度测量,在外核中以7-10%的精度测量-取决于质量排序。
Interplay of non-standard interactions and Earth's composition in atmospheric neutrino oscillations
Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México(墨西哥国立自治大学核科学研究所);Instituto de Física de Mar del Plata (IFIMAR), CONICET, UNMDP, Departamento de Física, Universidad Nacional de Mar del Plata(马德普拉塔大学物理系马德普拉塔物理研究所(CONICET))
Deep Earth imaging through neutrino and seismic tomography
Institute of Physics(印度物理研究所);Homi Bhabha National Institute(霍米·巴巴国立学院);Indian Institute of Science Education and Research, Pune(印度科学教育研究学院浦那分校);Tata Institute of Fundamental Research(塔塔基础研究院);CSIR Fourth Paradigm Institute(印度科学工业研究理事会第四范式研究所);Department of Physics, Aligarh Muslim University(阿利加尔穆斯林大学物理系)