Neutrino decay and long base-line oscillation experiments

Details Neutrino decay and long base-line oscillation experiments Neutrino decay and long base-line oscillation experiments

2000-02-11

arxiv.org/abs/hep-ph/0002124v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 5 figures, To be submitted to the Workshop on "Neutrino oscillations and their origin", Fuji-Yoshida, Japan, 11-13 Fe

Scientific paper

Considering neutrinos as time-like leptons one may estimate the three-body decay probability of muon neutrinos in long base-line accelerator experiments. In the extreme assumption of time-space symmetry the absolute value of the transcendent mass of a muon neutrino is equal to the rest mass of its bradyon partner which is, however, strongly suppressed in measurements using the weak interaction. This decay, neglecting small oscillations or other effects, leads to a strong dependence of the effect on the base-line distance. As a result, few hundred kilometre long baseline experiments might hardly see muon-like events. Total rates of electron-like events from three-body decay are calculated for K2K, MINOS and ICARUS. Shorter base-line experiments able to see clearly the effect of muon neutrino decay are very promissing component of long base-line projects.

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