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Type: Artigo de evento
Title: Absolute Neutrino Mass From Helicity Measurements
Author: Nishi C.C.
Abstract: The possibility to access the absolute neutrino mass scale through the measurement of the wrong helicity contribution of charged leptons is investigated in pion decay. Through this method, one may have access to the same effective mass m2 β extractable from the tritium beta decay experiments for electron neutrinos as well as the analogous effective mass (m2 νμ)eff for muon neutrinos. In the channel π- → e-ν̄, the relative probability of producing an antineutrino with left helicity is enhanced if compared with the naive expectation (mν/2Eν)2. © Società Italiana di Fisica.
Rights: fechado
Identifier DOI: 10.3254/978-1-60750-038-4-443
Date Issue: 2009
Appears in Collections:Unicamp - Artigos e Outros Documentos

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