New Index of CP Phase Effect and θ13 Screening in Long Baseline Neutrino Experiments
نویسندگان
چکیده
We introduce a new index of the leptonic CP phase dependence ICP and derive the maximal condition for this index in a simple and general form. ICP ≃ 100% may be realized even in the JPARC experiment. In the case that the 1-3 mixing angle can be observed in the next generation reactor experiments, namely sin 2θ13 > 0.01, and nevertheless νe appearance signal cannot be observed in the JPARC experiment, we conclude that the CP phase δ becomes a value around 135◦ (45◦) for ∆m231 > 0 (∆m231 < 0) without depending the uncertainties of solar and atmospheric parameters.
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