Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-02-15
Phys.Lett. B513 (2001) 391-400
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages with 5 figures
Scientific paper
10.1016/S0370-2693(01)00723-7
Matter effects in neutrino propagation translate into effective parameters for the oscillation and fake CP- and CPT-odd quantities, even in a scenario, such as $\Delta_{12}=0$, where no genuine CP violation is present. This fact seems to impose severe restrictions on the determination of intrinsic parameters of the system from long-baseline experiments. We show, however, that the resonance in the effective mixing $\tilde{\theta}_{13}$ can be observed for a certain range of baselines. This provides a way to measure the vacuum mixing angle $\theta_{13}$ and the sign of $\Delta m_{23}^2$ from atmospheric neutrinos, using a detector with energy resolution and charge discrimination.
Banuls Mari Carmen
Barenboim Gabriela
Bernabeu Jose
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