http://dspace-roma3.caspur.it:80 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. 2013-05-22T01:23:59Z http://hdl.handle.net/2307/321 <Title>CP violation in neutrino oscillations and new physics</Title> <Authors>Altarelli, Guido; Meloni, Davide</Authors> <Issue Date>2009-03-01</Issue Date> <Is part of>Nuclear Physics B</Is part of> <Volume>809</Volume> <Pages>158-182</Pages> <Abstract>We consider future experiments to detect CP violation in neutrino oscillations and discuss how to test that all asymmetries are indeed described in terms of the single leptonic Jarlskog invariant as predicted in the absence of new physics effects.</Abstract> 2009-02-28T23:00:00Z http://hdl.handle.net/2307/278 <Title>A simplest A4 model for Tri-Bimaximal neutrino mixing</Title> <Authors>Altarelli, Guido; Meloni, Davide</Authors> <Issue Date>2009</Issue Date> <Is part of>Journal of Physics G: Nuclear and Particle Physics</Is part of> <Volume>36</Volume> <Pages>085005</Pages> <Abstract>We present a see-saw A(4) model for Tri-Bimaximal mixing which is based on a very economical flavour symmetry and field content and still possesses all the good features of A(4) models. In particular the charged lepton mass hierarchies are determined by the A(4) x Z(4) flavour symmetry itself without invoking a Froggatt-Nielsen U(1)symmetry. Tri-Bimaximal mixing is exact in leading order while all the mixing angles receive corrections of the same order in next-to-leading approximation. As a consequence the predicted value of theta(13) is within the sensitivity of the experiments which will take data in the near future. The light neutrino spectrum, typical of A(4) see-saw models, with its phenomenological implications, also including leptoproduction, is studied in detail.</Abstract> 2008-12-31T23:00:00Z