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Search for heavy neutrinos in π → μν decay
- Source :
- Physics Letters B, Vol 798, Iss, Pp-(2019)
- Publication Year :
- 2019
- Publisher :
- Elsevier, 2019.
-
Abstract
- In the present work of the PIENU experiment, heavy neutrinos were sought in pion decays pi(+) -> mu(+)nu 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 vertical bar U-mu i vertical bar(2) in the neutrino mass region of 15.7-33.8 MeV/c(2), improving on previous results by an order of magnitude. (C) 2019 The Authors. Published by Elsevier B.V.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Muon
010308 nuclear & particles physics
Physics::Instrumentation and Detectors
Astrophysics::High Energy Astrophysical Phenomena
High Energy Physics::Phenomenology
Pontecorvo–Maki–Nakagawa–Sakata matrix
01 natural sciences
lcsh:QC1-999
Pion
0103 physical sciences
Energy spectrum
High Energy Physics::Experiment
Neutrino
Heavy neutrino
010306 general physics
Nuclear Experiment
Order of magnitude
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 798
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi.dedup.....1ca290de81b1801a72dfbd0c6016ffd7