Search for heavy neutrinos in π → μν decay

Aguilar-Arevalo, A. et al. (2019) Search for heavy neutrinos in π → μν decay. Physics Letters B, 798, 134980. (doi: 10.1016/j.physletb.2019.134980)

Abstract

In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays at rest by examining the observed muon energy spectrum for extra peaks in addition to the expected peak for a light neutrino. No evidence for heavy neutrinos was observed. Upper limits were set on the neutrino mixing matrix in the neutrino mass region of 15.7–33.8 MeV/c2, improving on previous results by an order of magnitude.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Britton, Professor David and Protopopescu, Dr Dan
• Authors: Aguilar-Arevalo, A., Aoki, M., Blecher, M., Britton, D.I., vom Bruch, D., Bryman, D.A., Chen, S., Comfort, J., Doria, L., Cuen-Rochin, S., Gumplinger, P., Hussein, A., Igarashi, Y., Ito, S., Kettell, S.H., Kurchaninov, L., Littenberg, L.S., Malbrunot, C., Mischke, R.E., Numao, T., Protopopescu, D., Sher, A., Sullivan, T., and Vavilov, D.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• Publisher: Elsevier
• ISSN: 0370-2693
• ISSN (Online): 1873-2445
• Published Online: 27 September 2019
• Copyright Holders: Copyright © 2019 The Authors
• First Published: First published in Physics Letters B 798:134980
• Publisher Policy: Reproduced under a Creative Commons licence