Oscillation properties of active and sterile neutrinos and neutrino anomalies at short distances
作者： V. V. Khruschov , O. A. Titov , S. V. Fomichev , S. V. Fomichev
DOI: 10.1134/S1063778816050124
关键词:
摘要: A generalized phenomenological (3 + 2 1) model featuring three active and sterile neutrinos that is intended for calculating oscillation properties of the case a normal activeneutrino mass hierarchy large splitting between one neutrino masses other two considered. new parametrization specific form general mixing matrix are proposed with allowance possible CP violation in lepton sector, test values chosen parameters. The probabilities transitions different flavors calculated, graphs representing disappearance muon neutrinos/antineutrinos appearance electron beam versus distance from source various admissible parameters at energies not higher than 50 MeV, as well ratio this to energy, plotted. It shown short-distance accelerator anomaly data (LNSD anomaly) can be explained (which belongs a type) parameter values. same applies reactor gallium anomalies. theoretical results obtained present study used interpret predict ground-based experiments aimed searches neutrinos, analyze some astrophysical observational data.
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