toyota national college of technology a.takamura collaboration with k.kimura and t.yoshikawa

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Toyota National College of T echnology A.Takamura Collaboration with K.Kimura and T.Yoshikawa GLoBES 200 7 Measuring the Leptonic CP Phase in Oscillations 1/24-1/26 at Heidelberg

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GLoBES 2007. Measuring the Leptonic CP Phase in Oscillations. 1/24-1/26 at Heide l berg. Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa. Outline of this talk. Recent MINOS results and deviation from maximal mixing. - PowerPoint PPT Presentation

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Page 1: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Toyota   National   College   of   Technology

A.TakamuraCollaboration with

K.Kimura and T.Yoshikawa

GLoBES 2007

Measuring the Leptonic CP Phase in Oscillations

1/24-1/26 at Heidelberg

Page 2: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

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

Page 3: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Recent MINOS results

Atmospheric neutrino

NuMI beam

Results

Page 4: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Discovery potential of 1-3 mixing angle

Double-Chooz experiment

T2K experiment

Well known result

Page 5: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Deviation from maximal 2-3 mixing angle

Small parameter

Correction by deviation

Important point

Page 6: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

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

Page 7: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Three flavor effect such as CP violation

Two small parameters

Three kinds of corrections

Important points

Page 8: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

CP violation in superbeam experiment

General feature on CP dependence

Magnitude of each coefficient

Unitarity relations Results

Page 9: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Estimation of Energy that CP violation is large

Resonance energies

Energy with large CP violation

Effective masses

Well known results

Page 10: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

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

Page 11: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Tool to study magnitude of CP violation

Max and Min of probability

Indices as a function

No fake CP violation

Results

Page 12: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Search of regions with large indices

Region with large

Region with large

Parameter set

Page 13: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

CP phase effect caused by CP even term

Change of probability

CP even term

Results

Page 14: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

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

Page 15: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

GLoBES software as a useful tool

GLoBES software

http://users.physik.tu-muenchen.de/globes/ Purpose

Experimental setup

Page 16: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Usefulness of disappearance channel

Electron only

Muon only

Page 17: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

1-3 mixing dependence on CP phase

Electron only

Electron and Muon

Results

Page 18: Toyota National College of Technology A.Takamura Collaboration with K.Kimura and T.Yoshikawa

Summary

Large CP violation

Region with large Results