Direct search for mass of neutrino and anomaly in the tritium beta-spectrum

被引：288

作者：

Lobashev, VM ^{[1
]}

Aseev, VN ^{[1
]}

Belesev, AI ^{[1
]}

Berlev, AI ^{[1
]}

Geraskin, EV ^{[1
]}

Golubev, AA ^{[1
]}

Kazachenko, OV ^{[1
]}

Kuznetsov, YE ^{[1
]}

Ostroumov, RP ^{[1
]}

Rivkis, LA ^{[1
]}

Stern, BE ^{[1
]}

Titov, NA ^{[1
]}

Zadorozhny, SV ^{[1
]}

Zakharov, YI ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

来源：

PHYSICS LETTERS B | 1999年 / 460卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

tritium; spectrum; neutrino mass; anomaly;

D O I：

10.1016/S0370-2693(99)00781-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results of the "Troitsk nu-mass" experiment on the search for the neutrino rest mass in the tritium beta-decay are presented. Study of time dependence of anomalous, bump-like structure at the end of beta spectrum reported earlier gives indication of periodic shift of the position of the bump with respect to the end-point energy with a period of 0.5 year. A new upper limit for electron antineutrino rest mass m(nu) < 2.5 eV/c(2) 95% C.L. is derived after accounting for the bump. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：227 / 235

页数：9

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