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Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay
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 neut...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2019
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2019.134980 http://cds.cern.ch/record/2671021 |
| _version_ | 1780962321657495552 |
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| author | 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. Vavilov, D. |
| author_facet | 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. Vavilov, D. |
| author_sort | Aguilar-Arevalo, A. |
| collection | CERN |
| description | 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 |Uμi|2 in the neutrino mass region of 15.7–33.8 MeV/c 2 , improving on previous results by an order of magnitude. |
| id | cern-2671021 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2019 |
| record_format | invenio |
| spelling | cern-26710212022-08-10T12:21:48Zdoi:10.1016/j.physletb.2019.134980http://cds.cern.ch/record/2671021engAguilar-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.Vavilov, D.Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decayhep-exParticle Physics - ExperimentIn 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 |Uμi|2 in the neutrino mass region of 15.7–33.8 MeV/c 2 , improving on previous results by an order of magnitude.Heavy neutrinos were sought in pion decays $\pi^+ \rightarrow \mu^+ \nu$ by examining the observed muon energy spectrum for extra peaks in addition to the expected peak for a massless neutrino. No evidence for heavy neutrinos was observed. Upper limits were set on the neutrino mixing matrix $|U_{\mu i}|^2$ in the neutrino mass region of 15.7--33.8 MeV/c$^2$, improving on previous results by an order of magnitude.arXiv:1904.03269oai:cds.cern.ch:26710212019-04-05 |
| spellingShingle | hep-ex Particle Physics - Experiment 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. Vavilov, D. Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title | Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title_full | Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title_fullStr | Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title_full_unstemmed | Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title_short | Search for Heavy Neutrinos in $\pi \to \mu\nu$ Decay |
| title_sort | search for heavy neutrinos in $\pi \to \mu\nu$ decay |
| topic | hep-ex Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/j.physletb.2019.134980 http://cds.cern.ch/record/2671021 |
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