Direct probes of neutrino mass

被引:3
作者
Robertson, R. G. Hamish [1 ,2 ]
机构
[1] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA
[2] Univ Washington, Dept Phys, Seattle, WA 98195 USA
关键词
Neutrino mass; beta decay; tritium; electron spectroscopy; BETA-DECAY; TRITIUM; ELECTRON; SPECTROMETER; CONSERVATION; SPECTRUM; BEHAVIOR; KATRIN;
D O I
10.1016/j.nuclphysbps.2015.06.003
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The discovery of neutrino oscillations has shown that neutrinos, in contradiction to a prediction of the minimal standard model, have mass. Oscillations do not yield a value for the mass, but do set a lower limit of 0.02 eV on the average of the 3 known eigenmasses. Moreover, they make it possible to determine or limit all 3 masses from measurements of electron-flavor neutrinos in beta decay. The present upper limit from such measurements is 2 eV. We review the status of laboratory work toward closing the remaining window between 2 and 0.02 eV, and measuring the mass.
引用
收藏
页码:7 / 12
页数:6
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