Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa GLoBES 2007 Measuring the Leptonic CP Phase in Oscillations 1/24-1/26 at Heidelberg

Outline of this talk As a main result, degeneracy on CP phase can be solved GLoBES Three flavor effect in disappearance channel Energy and baseline length with large CP phase effect Recent MINOS results and deviation from maximal mixing

Recent MINOS results Atmospheric neutrino NuMI beam Results

Discovery potential of 1-3 mixing angle Double-Chooz experiment T2K experiment Well known result

Deviation from maximal 2-3 mixing angle Small parameter Correction by deviation Important point

Next explanation As a main result, degeneracy on CP phase can be solved GLoBES Three flavor effect in disappearance channel Energy and baseline length with large CP phase effect Recent MINOS results and deviation from maximal mixing

Three flavor effect such as CP violation Two small parameters Three kinds of corrections Important points

CP violation in superbeam experiment General feature on CP dependence Magnitude of each coefficient Unitarity relations Results

Estimation of Energy that CP violation is large Resonance energies Energy with large CP violation Effective masses Well known results

Next explanation As a main result, degeneracy on CP phase can be solved GLoBES Three flavor effect in disappearance channel Energy and baseline length with large CP phase effect Recent MINOS results and deviation from maximal mixing

Tool to study magnitude of CP violation Max and Min of probability Indices as a function No fake CP violation Results

Search of regions with large indices Region with large Parameter set

CP phase effect caused by CP even term Change of probability CP even term Results

Main result As a main result, degeneracy on CP phase can be solved Three flavor effect in disappearance channel Energy and baseline length with large CP phase effect Recent MINOS results and deviation from maximal mixing GLoBES

GLoBES software as a useful tool GLoBES software PurposeExperimental setup

Usefulness of disappearance channel Electron only Muon only

1-3 mixing dependence on CP phase Electron only Electron and Muon Results

Summary Large CP violation Region with largeResults