Bibliographic Details
| Title: |
Search for heavy neutrinos in π → μν decay. |
| Authors: |
Aguilar-Arevalo, A.1 (AUTHOR), Aoki, M.2 (AUTHOR), Blecher, M.3 (AUTHOR), Britton, D.I.4 (AUTHOR), vom Bruch, D.1,5 (AUTHOR), Bryman, D.A.5,6 (AUTHOR), Chen, S.7 (AUTHOR), Comfort, J.8 (AUTHOR), Doria, L.1,6 (AUTHOR), Cuen-Rochin, S.5,6 (AUTHOR), Gumplinger, P.6 (AUTHOR), Hussein, A.6,9 (AUTHOR), Igarashi, Y.10 (AUTHOR), Ito, S.1,2 (AUTHOR) s-ito@okayama-u.ac.jp, Kettell, S.H.11 (AUTHOR), Kurchaninov, L.6 (AUTHOR), Littenberg, L.S.11 (AUTHOR), Malbrunot, C.1,5 (AUTHOR), Mischke, R.E.6 (AUTHOR), Numao, T.1,6 (AUTHOR) toshio@triumf.ca |
| Source: |
Physics Letters B. Nov2019, Vol. 798, pN.PAG-N.PAG. 1p. |
| Subject Terms: |
*NEUTRINOS, *NEUTRINO mass, *MUONS, *PIONS, *MAGNITUDE (Mathematics) |
| Abstract: |
In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays π + → μ + ν 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 | U μ i | 2 in the neutrino mass region of 15.7–33.8 MeV/c2, improving on previous results by an order of magnitude. [ABSTRACT FROM AUTHOR] |
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| Database: |
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