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EnglishI report on recent theoretical results about neutrino mixing and oscillations. I show that in Quantum Field Theory, mixing transformations are not trivial and the vacuum for the mixed fields has a condensate structure. This fact has phenomenological consequences on neutrino oscillations: the oscillation formula turns out to have an additional oscillating piece and energy dependent amplitudes. The usual Pontecorvo formula is recovered in the relativistic limit. I report also about preliminary results on the presence of a topological (Berry) phase for oscillating neutrinos.
| Titolo: | New results in the physics of neutrino oscillations |
| Autori: | |
| Data di pubblicazione: | 2000 |
| Abstract: | I report on recent theoretical results about neutrino mixing and oscillations. I show that in Quantum Field Theory, mixing transformations are not trivial and the vacuum for the mixed fields has a condensate structure. This fact has phenomenological consequences on neutrino oscillations: the oscillation formula turns out to have an additional oscillating piece and energy dependent amplitudes. The usual Pontecorvo formula is recovered in the relativistic limit. I report also about preliminary results on the presence of a topological (Berry) phase for oscillating neutrinos. |
| Handle: | http://hdl.handle.net/11386/1063717 |
| ISBN: | 9789810241902 |
| Appare nelle tipologie: | 4.1.2 Proceedings con ISBN |
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