DISCRETE 2014: Fourth Symposium on Prospects in the Physics of Discrete Symmetries

Session

Parallel 2: Neutrinos mass and mixing, implications for astroparticle physics, dark matter searches

2 Dec 2014, 14:45

Great Hall and several lecture theatres (King's College London, Strand Campus)

78. Neutrino Astrophysics : recent advances and open issues

Dr CRISTINA VOLPE (ASTROPARTICULE ET COSMOLOGIE (APC))

02/12/2014, 14:45

Neutrinos of astrophysical origin are messengers produced in stars, in explosive phenomena like core-collapse supernovae, in the accretion disks around black holes, or in the Earth's atmosphere. Their fluxes and spectra encode information on the environments that produce them. Such fluxes are modified in characteristic ways when neutrinos traverse a medium, also depending on key unknown...

77. Dynamical generation of fermion mixing

Massimo Blasone (Università di Salerno)

02/12/2014, 15:20

We present a dynamical mechanism à la Nambu-Jona-Lasinio for the generation of masses and mixing for two interacting fermion fields. The analysis is carried out in a framework in which mass generation is achieved via inequivalent representations, and that we generalize to the case of two generations. The method allows a clear identification of the vacuum structure for each physical phase,...

61. Time-reversal invariance and neutrino oscillations in a medium with a symmetric density

Dr Juan Carlos D'Olivo (Depto. de Física Teórica, Universidad de Valencia)

02/12/2014, 15:55

We consider the evolution operator of a quantum system described by a time-dependent Hamiltonian that is invariant under time reversal. As an illustration we examine the three-neutrino oscillations in a medium with a density profile which is symmetrical about the midpoint of the of the neutrino trajectory. The evolution operator is written as the product of factors corresponding to...