Note on the field theory of neutrino mixing
نویسنده
چکیده
The problem of the diagonalization of the flavor-neutrino propagator matrix is investigated in the theory with flavor-mixing mass terms in Lagrangian. For this purpose we examine one-pole structures of flavor-neutrino propagators, leading to physical neutrino masses, and discuss the relation of the propagator diagonalizaion to the diagonalizaion of the mass matrix in Lagrangian. In connection with the paper by Blasone et al., it is pointed out that there is no compelling reason for fixing the mass parameters, althought this fixing is necessary in order to construct the flavor Hilbert space.
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