New features of the anomaly in the tritium beta spectrum from the "Troitsk ν-mass" experiment.

被引:0
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 ]
Ryvkis, 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
DARK MATTER IN ASTROPHYSICS AND PARTICLE PHYSICS 1998 | 1999年
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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 anomalious, 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 end-point energy with period of 0.5 year. New upper limit for electron antineutrino rest mass m(nu) < 2.5eV/c(2) is derived after accounting for the bump.
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页码:851 / 856
页数:6
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