A high-sensitivity search for a 17keV neutrino

Jumpei Shirai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A negative result for the existence of a 17keV neutrino was obtained by a very high-statistical measurement of the 63Ni β-spectrum and a response function using an iron-free magnetic spectrometer. The obtained mixing strength is |U|2 = (1.8±3.3(stat.)±3.3(sys.))×10-4, which strongly excludes the existence of a 17keV neutrino with an admixture of 1%. We set the upper limit to 0.095% on |U|2 with a 95% confidence level.

Original languageEnglish
Pages (from-to)117-126
Number of pages10
JournalNuclear Physics B (Proceedings Supplements)
Volume32
Issue numberC
DOIs
Publication statusPublished - 1993 Jan 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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