Reactor Neutrino Experiments Compared to Superbeams

Details Reactor Neutrino Experiments Compared to Superbeams Reactor Neutrino Experiments Compared to Superbeams

2003-03-27

arxiv.org/abs/hep-ph/0303232v3

Nucl.Phys.B665:487-519,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Typo in Eq. (9) corrected. 36 pages, 12 figures

Scientific paper

10.1016/S0550-3213(03)00493-0

We present a detailed quantitative discussion of the measurement of the leptonic mixing angle $\sin^2 2 \theta_{13}$ with a future reactor neutrino oscillation experiment consisting of a near and far detector. We perform a thorough analysis of the impact of various systematical errors and compare the resulting physics potential to the one of planned first-generation superbeam experiments. Furthermore, we investigate the complementarity of both types of experiments. We find that, under realistic assumptions, a determination of $\sin^2 2 \theta_{13}$ down to $10^{-2}$ is possible with reactor experiments. They are thus highly competitive to first-generation superbeams and may be able to test $\sin^2 2 \theta_{13}$ on shorter timescales. In addition, we find that the combination of a KamLAND-size reactor experiment with one or two superbeams could substantially improve the ability to access the neutrino mass hierarchy or the leptonic CP phase.

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