Note on the field theory of neutrino mixing

Details Note on the field theory of neutrino mixing Note on the field theory of neutrino mixing

1998-07-07

arxiv.org/abs/hep-ph/9807266v1

Phys.Rev.D59:113003,1999; Erratum-ibid.D60:099903,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, revtex, no figure

Scientific paper

10.1103/PhysRevD.59.113003

The problem of the diagonalization of the flavor-neutrino propagator mat rix is investigated in the theory with flavor-mixing mass terms in Lagrangian. For this purpose we examine one-pole structures of flavor-neutrino propa gators, leading to physical neutrino masses, and discuss the relation of the pro pagator diagonalizaion to the diagonalizaion of the mass matrix in Lagrangian. In connection with the paper by Blasone et al., it is pointed out that t here is no compelling reason for fixing the mass parameters, althought this fixi ng is necessary in order to construct the flavor Hilbert space.

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