Toward precision study of atmospheric neutrino oscillations

Nuclear Physics B (Proc. Suppl.) 159 (2006) 15–20 www.elsevierphysics.com

0920-5632/$ – see front matter © 2006 Elsevier B.V. All rights reserved. doi:10.1016/j.nuclphysbps.2006.08.022

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T. Kajita / Nuclear Physics B (Proc. Suppl.) 159 (2006) 15–20

40 35 30 25 20 15 10 5 0

0.5

0.5 90% C.L. 99% C.L.

0.3 0.2 0.1 0

90% C.L. 99% C.L.

0.4 sin2θ13

sin2θ13

0.4

0.3 0.2 0.1

0

0.2

0.4

0.6 2

sin θ23

0.8

1

0

0

0.2

0.4

0.6

sin2θ23

0.8

1

0

0.02 0.04 0.06 0.08 0

0.02 0.04 0.06 0.08 0

13

13

sin2

sin2

0.02 0.04 0.06 0.08

sin 2

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T. Kajita / Nuclear Physics B (Proc. Suppl.) 159 (2006) 15–20

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1

1

2

2 flavor (sin 2θ23=0.96)

0.5

1

w/o 1-2 parameters w/ 1-2 parameters

8 7

-0.5

0 cosθ

0.5

1

2min

0 cosθ

6 5

sin θ23 = 0.4 2 sin θ23 = 0.5 2 sin θ23 = 0.6

1

2

2 flavor (sin 2θ23=0.96)

-0.5

0 cosθ

0.5

1

4

6 5

3

4 3

2

2 1

1

0 0.3

2

0.95 -1

2

-0.5

0.95 -1

χ -χ

2 min

9

2

10

-

0.95 -1

Sub-GeV

1.05

/ (Nμ / Ne)

1.05

osc

1.05

2

sin θ23 = 0.4 2 sin θ23 = 0.5 2 sin θ23 = 0.6

1.1

(Nμ / Ne)

2

sin θ23 = 0.4 2 sin θ23 = 0.5 2 sin θ23 = 0.6

Sub-GeV μ-like

2flavor full-mixing

1.1

Sub-GeV e-like Nμosc / Nμ2flavor full-mixing

Neosc / Ne2flavor full-mixing

1.1

0.4

0.5

0.6

0.7 sin2

23

0

0.3

0.4

0.5

0.6

0.7 2 sin θ23

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T. Kajita / Nuclear Physics B (Proc. Suppl.) 159 (2006) 15–20 1.2 1.15

Ne/Ne0

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cosΘ

1.15

Ne/Ne0

1.1 1.05 1 0.95 0.9 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 cosΘ

20 0.18

0.16

0.16

0.14

0.14

0.12

0.12 sin θ13

0.18

0.1

2

sin θ13

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T. Kajita / Nuclear Physics B (Proc. Suppl.) 159 (2006) 15–20

0.08

0.1

0.08

0.06

0.06

0.04

0.04

0.02 0

0.02 0

50

100 150 200 250 300 350 CP phase

0

0

50

100 150 200 250 300 350 CP phase