Neutrino oscillations in a trapping potential

Neutrino oscillations

founded in 1739, is an independent organisation whose overall objective is to promote the sciences and strengthen their influence in society. The Academy takes special responsibility for the natural sciences and mathematics, but endeavours to promote the exchange of ideas between various disciplines.

Neutrino Trapping and Neutrino Mass Bounds

It has been shown recently that the exchange of virtual νν̄ pairs leads to an unphysically large energy-density in neutron stars and white dwarfs, unless neutrinos have a minimum mass,mν > ∼ 0.4 eV/c 2 . Here we consider the possibility that the presence of trapped low-energy neutrinos can suppress the exchange of virtual νν̄ pairs, thereby avoiding a large energy-density even for massless neutri...

neutrino oscillations

The original B. Pontecorvo idea of neutrino oscillations is discussed. Neutrino mixing and basics of neutrino oscillations in vacuum and in matter are considered. Recent evidences in favour of neutrino oscillations, obtained in the Super-Kamiokande, SNO, KamLAND and other neutrino experiments are discussed. Neutrino oscillations in the solar and atmospheric ranges of the neutrino mass-squared d...

Neutrino oscillations

Neutrino Oscillations : a Global Analysis

We review the status of the neutrino oscillation physics (as of June 2003), with a particular emphasis on the present knowledge of the neutrino mass-mixing parameters in a three generation approach. We consider first the ν µ → ν τ flavor transitions of atmospheric neutrinos. It is found that standard oscillations provide the best description of the SK+K2K data, and that the associated mass-mixi...