Next generation long baseline experiments on the path to leptonic CP violation

Details Next generation long baseline experiments on the path to leptonic CP violation Next generation long baseline experiments on the path to leptonic CP violation

2003-02-28

arxiv.org/abs/hep-ph/0302274v2

Phys.Lett. B563 (2003) 73-82

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 8 figures. Version to appear in PLB

Scientific paper

10.1016/S0370-2693(03)00606-3

In this paper we quantify the trade-off between setups optimized to be ancillary to Phase II Superbeams or Neutrino Factories and experiments tuned for maximal sensitivity to the subdominant terms of the neutrino transition probability at the atmospheric scale (``maximum discovery potential''). In particular, the theta(13) sensitivity is computed for both Phase I superbeams (JHF-SK and NuMI Off-Axis) and next generation long baseline experiments (ICARUS, OPERA and MINOS). It is shown that Phase I experiments cannot reach a sensitivity able to ground (or discourage in a definitive manner) the building of Phase II projects and that, in case of null result and without a dedicated $\bar{\nu}$ run, this capability is almost saturated by high energy beams like CNGS, especially for high values of the ratio $\Delta m^2_{21}/|\Delta m^2_{31}|$.

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