تقرير
First measeurements in search for keV-sterile neutrino in tritium beta-decay by Troitsk nu-mass experiment
| العنوان: | First measeurements in search for keV-sterile neutrino in tritium beta-decay by Troitsk nu-mass experiment |
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| المؤلفون: | Abdurashitov, J. N., Belesev, A. I., Chernov, V. G., Geraskin, E. V., Golubev, A. A., Grigorieva, P. V., Koroteev, G. A., Likhovid, N. A., Nozik, A. A., Pantuev, V. S., Parfenov, V. I., Skasyrskaya, A. K., Tkachev, I. I., Zadorozhny, S. V. |
| سنة النشر: | 2017 |
| المجموعة: | High Energy Physics - Experiment Physics (Other) |
| مصطلحات موضوعية: | High Energy Physics - Experiment, Physics - Instrumentation and Detectors |
| الوصف: | We present the first measurements of tritium beta-decay spectrum in the electron energy range 16-18.6 keV. The goal is to find distortions which may correspond to the presence of a heavy sterile neutrinos. A possible contribution of this kind would manifest itself as a kink in the spectrum with a similar shape but with end point shifted by the value of a heavy neutrino mass. We set a new upper limits to the neutrino mixing matrix element U^2_{e4} which improve existing limits by a factor from 2 to 5 in the mass range 0.1-2 keV. Comment: 5 pages, 4 figures, accepted for publication version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1134/S0021364017120013 |
| URL الوصول: | http://arxiv.org/abs/1703.10779 |
| رقم الأكسشن: | edsarx.1703.10779 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1134/S0021364017120013 |
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