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arXiv 0707.3203physics.geo-phastro-phhep-phnucl-exnucl-th
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地球中微子与地球内部

Geo-neutrinos and Earth's interior

Gianni Fiorentini, Marcello Lissia, Fabio Mantovani

摘要:

迄今为止挖过的最深的洞大约有12公里深。地球化学家分析来自地壳和地幔顶部的样品。地震学可以重建整个地球的密度分布,但不能重建其组成。在这方面,我们的星球主要是未开发的。地中微子是由铀、钍和钾40衰变产生的反中微子,它能将地球表面的天然放射性元素的含量信息带到地球表面。它们的探测可以揭示地球热流的来源、地球的组成和地球的起源。地球中微子代表了我们星球的一种新探测器,它可以作为过去几年中发生的两个基本进展的结果而被利用:极低背景中微子探测器的开发和对中微子传播的理解的进展。本文综述了该领域的研究现状和发展前景。

英文摘要:

The deepest hole that has ever been dug is about 12 km deep. Geochemists analyze samples from the Earth's crust and from the top of the mantle. Seismology can reconstruct the density profile throughout all Earth, but not its composition. In this respect, our planet is mainly unexplored. Geo-neutrinos, the antineutrinos from the progenies of U, Th and K40 decays in the Earth, bring to the surface information from the whole planet, concerning its content of natural radioactive elements. Their detection can shed light on the sources of the terrestrial heat flow, on the present composition, and on the origins of the Earth. Geo-neutrinos represent a new probe of our planet, which can be exploited as a consequence of two fundamental advances that occurred in the last few years: the development of extremely low background neutrino detectors and the progress on understanding neutrino propagation. We review the status and the prospects of the field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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