High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%

H. Kawakami; S. Kato; T. Oshima; C. Rosenfeld; H. Sakamoto; T. Sato; S. Shibata; J. Shirai; Y. Sugaya; T. Suzuki; K. Takahashi; T. Tsukamoto; K. Ueno; K. Ukai; S. Wilson; Y. Yonezawa

doi:10.1016/0370-2693(92)91874-9

High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%

H. Kawakami, S. Kato, T. Oshima, C. Rosenfeld, H. Sakamoto, T. Sato, S. Shibata, J. Shirai, Y. Sugaya, T. Suzuki, K. Takahashi, T. Tsukamoto, K. Ueno, K. Ukai, S. Wilson, Y. Yonezawa

Research Center for Neutrino Science (RCNS)

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37 Citations (Scopus)

Abstract

We have performed a search for a 17 keV neutrino by looking for a kink in the ⁶³Ni β-spectrum near the expected energy threshold. Using a large number of events (2.4 × 10⁹) accumulated in a narrow energy region with the INS iron-free π√2 β-spectrometer, we obtain a mixing strength of [1.8±3.3(stat.)±3.3(syst.)]×10^-4, and no indication of the presence of a 17 keV neutrino with the order of 1% mixing. We set an upper limit of 0.095% for the admixture of a neutrino with a mass of 17 keV and of 0.1% with a mass range of 10-24 keV, at the 95% confidence level.

Original language	English
Pages (from-to)	45-50
Number of pages	6
Journal	Physics Letters B
Volume	287
Issue number	1-3
DOIs	https://doi.org/10.1016/0370-2693(92)91874-9
Publication status	Published - 1992 Aug 6

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0370-2693(92)91874-9

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Kawakami, H., Kato, S., Oshima, T., Rosenfeld, C., Sakamoto, H., Sato, T., Shibata, S., Shirai, J., Sugaya, Y., Suzuki, T., Takahashi, K., Tsukamoto, T., Ueno, K., Ukai, K., Wilson, S., & Yonezawa, Y. (1992). High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%. Physics Letters B, 287(1-3), 45-50. https://doi.org/10.1016/0370-2693(92)91874-9

Kawakami, H, Kato, S, Oshima, T, Rosenfeld, C, Sakamoto, H, Sato, T, Shibata, S, Shirai, J, Sugaya, Y, Suzuki, T, Takahashi, K, Tsukamoto, T, Ueno, K, Ukai, K, Wilson, S & Yonezawa, Y 1992, 'High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%', Physics Letters B, vol. 287, no. 1-3, pp. 45-50. https://doi.org/10.1016/0370-2693(92)91874-9

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title = "High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%",

abstract = "We have performed a search for a 17 keV neutrino by looking for a kink in the 63Ni β-spectrum near the expected energy threshold. Using a large number of events (2.4 × 109) accumulated in a narrow energy region with the INS iron-free π√2 β-spectrometer, we obtain a mixing strength of [1.8±3.3(stat.)±3.3(syst.)]×10-4, and no indication of the presence of a 17 keV neutrino with the order of 1% mixing. We set an upper limit of 0.095% for the admixture of a neutrino with a mass of 17 keV and of 0.1% with a mass range of 10-24 keV, at the 95% confidence level.",

author = "H. Kawakami and S. Kato and T. Oshima and C. Rosenfeld and H. Sakamoto and T. Sato and S. Shibata and J. Shirai and Y. Sugaya and T. Suzuki and K. Takahashi and T. Tsukamoto and K. Ueno and K. Ukai and S. Wilson and Y. Yonezawa",

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doi = "10.1016/0370-2693(92)91874-9",

language = "English",

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TY - JOUR

T1 - High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%

AU - Kawakami, H.

AU - Kato, S.

AU - Oshima, T.

AU - Rosenfeld, C.

AU - Sakamoto, H.

AU - Sato, T.

AU - Shibata, S.

AU - Shirai, J.

AU - Sugaya, Y.

AU - Suzuki, T.

AU - Takahashi, K.

AU - Tsukamoto, T.

AU - Ueno, K.

AU - Ukai, K.

AU - Wilson, S.

AU - Yonezawa, Y.

PY - 1992/8/6

Y1 - 1992/8/6

N2 - We have performed a search for a 17 keV neutrino by looking for a kink in the 63Ni β-spectrum near the expected energy threshold. Using a large number of events (2.4 × 109) accumulated in a narrow energy region with the INS iron-free π√2 β-spectrometer, we obtain a mixing strength of [1.8±3.3(stat.)±3.3(syst.)]×10-4, and no indication of the presence of a 17 keV neutrino with the order of 1% mixing. We set an upper limit of 0.095% for the admixture of a neutrino with a mass of 17 keV and of 0.1% with a mass range of 10-24 keV, at the 95% confidence level.

AB - We have performed a search for a 17 keV neutrino by looking for a kink in the 63Ni β-spectrum near the expected energy threshold. Using a large number of events (2.4 × 109) accumulated in a narrow energy region with the INS iron-free π√2 β-spectrometer, we obtain a mixing strength of [1.8±3.3(stat.)±3.3(syst.)]×10-4, and no indication of the presence of a 17 keV neutrino with the order of 1% mixing. We set an upper limit of 0.095% for the admixture of a neutrino with a mass of 17 keV and of 0.1% with a mass range of 10-24 keV, at the 95% confidence level.

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SP - 45

EP - 50

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-3

ER -

High sensitivity search for a 17 keV neutrino. Negative indication with an upper limit of 0.095%

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