Antineutrino spectroscopy with large water Cerenkov detectors

被引：363

作者：

Beacom, JF

Vagins, MR

机构：

[1] Fermilab Natl Accelerator Lab, NASA, Fermilab Astrophys Ctr, Batavia, IL 60510 USA

[2] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 17期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1103/PhysRevLett.93.171101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose modifying large water Cerenkov detectors by the addition of 0.2% gadolinium trichloride, which is highly soluble, newly inexpensive, and transparent in solution. Since Gd has an enormous cross section for radiative neutron capture, with SigmaE(gamma)=8 MeV, this would make neutrons visible for the first time in such detectors, allowing antineutrino tagging by the coincidence detection reaction (nu) over bar (e)+p-->e(+)+n (similarly for (nu) over bar (mu)). Taking Super-Kamiokande as a working example, dramatic consequences for reactor neutrino measurements, first observation of the diffuse supernova neutrino background, galactic supernova detection, and other topics are discussed.

引用

页码：171101 / 1

页数：4

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