Tuesday, April 16, 2013

1304.4186 (Y. F. Pérez et al.)

Spreading of wave packets for Majorana neutrino oscillations in vacuum    [PDF]

Y. F. Pérez, C. J. Quimbay
In this work we study the spreading effects of wave packets on the two-flavor neutrino oscillation probabilities in vacuum for describing neutrinos by Majorana fields. To do it, the flavor neutrinos are considered as superpositions of neutrino mass eigenstates which are described by localized wave packets. The spreading effects are studied in two cases: (i) Considering only the space spreading; (ii) considering simultaneously the time and space spreading. For the space spreading case, we obtain a functional form of the oscillation probabilities which is consistent with that reported in the literature for Dirac neutrinos. For the time-space spreading case, we obtain a new expression for the oscillation probabilities that includes some small changes in the oscillation and coherence lengths.
View original: http://arxiv.org/abs/1304.4186

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