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CP Trajectory Diagram; A tool for pictorial representation of CP and matter effects in neutrino oscillations

Hisakazu Minakata·Hiroshi Nunokawa
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Abstract

We introduce "CP trajectory diagram in bi-probability space" as a powerful tool for pictorial representation of the genuine CP and the matter effects in neutrino oscillations. Existence of the correlated ambiguity in a determination of CP violating phase δand the sign of Δm^2_{13} is uncovered. Principles of tuning beam energy for a given baseline distance are proposed to resolve the ambiguity and to maximize the CP-odd effect. We finally point out, quite contrary to what is usually believed, that the ambiguity may be resolved with 50 % chance in the super-JHF experiment despite its relatively short baseline of 300 km.

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Hisakazu Minakata, Hiroshi Nunokawa. 2001-11-12. CP Trajectory Diagram; A tool for pictorial representation of CP and matter effects in neutrino oscillations. https://doi.org/10.1016/s0168-9002(03)00678-8

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