62 research outputs found
Long-baseline neutrino oscillation experiments and CP violation in the lepton sector
We discuss possibilities to investigate the effects of CP (and T) violation
in the lepton sector in neutrino oscillation experiments. We consider the
effects of CP violation in the framework of two schemes of mixing of four
massive neutrinos that can accommodate the results of all neutrino oscillation
experiments. Using the constraints on the mixing parameters that follow from
the results of short-baseline neutrino oscillation experiments, we derive
rather strong upper bounds on the effects of CP violation in nu_munu_e
transitions in long-baseline neutrino oscillation experiments. We show that the
effects of CP violation in nu_munu_tau transitions in long-baseline
oscillation experiments can be as large as is allowed by the unitarity of the
mixing matrix. The matter effects, which complicate the problem of searching
for CP violation in long-baseline experiments, are discussed in detail. We
consider the T-odd asymmetries whose measurement could allow to reveal T and CP
violation in the lepton sector independently from matter effects.Comment: 31 pages, including 5 figure
- …