PULSAR VELOCITY WITH 3-NEUTRINO OSCILLATIONS IN NONADIABATIC PROCESSES

We have studied the position dependence of neutrino energy on the Kuse nko-Segre mechanism as an explanation of the proper motion of pulsars. The mechanism is also examined in three-generation mixing of neutrino s and in a non-adiabatic case. The position dependence of neutrino ene rgy requires the higher value of magnetic field such as B similar to 3 x 10(15) Gauss in order to explain the observed proper motion of puls ars. It is shown that possible non-adiabatic processes decrease the ne utrino momentum asymmetry, whereas an excess of electron neutrino flux over other flavor neutrino fluxes increases the neutrino momentum asy mmetry. It is also shown that a general treatment with all three neutr inos does not modify the result of the two generation treatment if the standard neutrino mass hierarchy is assumed. (C) 1998 Elsevier Scienc e B.V.