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

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.

6 pages with 2 postscript figures. Talk presented at The 3rd International Workshop on Neutrino Factories Based on Muon Storage Rings (NuFACT01), Tsukuba, Japan, May 24-30, 2001

References in corpus (4)

• Exploring Neutrino Mixing with Low Energy Superbeams
• On the measurement of leptonic CP violation
• Exact Formula of Probability and CP Violation for Neutrino Oscillations in Matter
• CERN to Gran Sasso; An ideal distance for superbeam?

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• From parameter space constraints to the precision determination of the leptonic Dirac CP phase
• On in situ Determination of Earth Matter Density in Neutrino Factory
• Understanding CP phase-dependent measurements at neutrino superbeams in terms of bi-rate graphs
• Neutrino factories - Physics potential and present status
• Summary of Working Group 1: Theory Part