Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-05-17
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, LaTeX. To appear in Proceedings of "Results and Perspectives in Particle Physics", La Thuile, Aosta Valley, March 19
Scientific paper
Field mixing transformations are studied in quantum field theory and the generator of the transformations is found to induce an SU(2) coherent structure in the vacuum state, both for bosons and for fermions. The Fock space for mixed fields is unitarily inequivalent to the Fock space of the unmixed fields in the infinite volume limit. We study neutrino mixing and oscillations and find that the oscillation amplitude is depressed by a factor which is momentum and mass dependent. The usual formula is recovered in the relativistic limit. Phenomenological features of the modified oscillation formula are discussed. Finally, preliminary results of the Green's function formalism are presented.
Blasone Massimo
Henning Patricia A.
Vitiello Giuseppe
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