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Decoherence in neutrino oscillations, neutrino nature and CPT violation

Capolupo, A.; Giampaolo, Salvatore Marco; Lambiase, G. (2019) Decoherence in neutrino oscillations, neutrino nature and CPT violation. Physics Letters B, 792 . pp. 298-303. ISSN 0370-2693

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Abstract

We analyze many aspects of the phenomenon of the decoherence for neutrinos propagating in long baseline experiments. We show that, in the presence of an off-diagonal term in the dissipative matrix, the Majorana neutrino can violate the CP T symmetry, which, on the contrary, is preserved for Dirac neutrinos. We show that oscillation formulas for Majorana neutrinos depend on the choice of the mixing matrix U. Indeed, different choices of U lead to different oscillation formulas. Moreover, we study the possibility to reveal the differences between Dirac and Majorana neutrinos in the oscillations. We use the present values of the experimental parameters in order to relate our theoretical proposal with experiments.

Item Type: Article
Uncontrolled Keywords: decoherence
Subjects: NATURAL SCIENCES > Physics
Divisions: Theoretical Physics Division
Depositing User: Sofija Konjević
Date Deposited: 22 Jul 2019 12:19
Last Modified: 22 Jul 2019 12:19
URI: http://fulir.irb.hr/id/eprint/4905
DOI: 10.1016/j.physletb.2019.03.062

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