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Transcript of Ë Í § Û ¦ § ï Ã w ú gË Í Û ï Ã ¢Hyper-Kamiokande £ x µ Í Û ï Ã...
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参考文献[1] K. Abe, et al. [T2K Collaboration], Phys. Rev.
Lett. 121, 171802 (2018).
[2] K. Abe et al. [T2K Collaboration], Phys. Rev. D
98, 012004 (2018).
[3] N. Abgrall et al. [NA61/SHINE Collaboration],
Phys. Rev. C 84, 034604 (2011).
[4] N. Abgrall et al. [NA61/SHINE Collaboration],
Phys. Rev. C 85, 035210 (2012).
[5] N. Abgrall et al. [NA61/SHINE Collaboration],
Phys. Rev. C 89, no. 2, 025205 (2014).
[6] N. Abgrall et al. [NA61/SHINE Collaboration],
Eur. Phys. J. C 76, no. 2, 84 (2016).
[7] N. Abgrall et al. [NA61/SHINE Collaboration],
Nucl. Instrum. Meth. A 701, 99 (2013).
[8] N. Abgrall et al. [NA61/SHINE Collaboration],
Eur. Phys. J. C 76, no. 11, 617 (2016).
[9] N. Abgrall et al. [NA61/SHINE Collaboration],
Eur. Phys. J. C 79, no. 2, 100 (2019).
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tion], Phys. Rev. D 98, no. 5, 052001 (2018).
[11] NA61/SHINE Beyond 2020 Workshop.
https://indico.cern.ch/event/629968
[12] A. Aduszkiewicz et al. [NA61/SHINE
Collaboration], CERN-SPSC-2018-008.
https://cds.cern.ch/record/2309890
[13] J. Evans, D. G. Gamez, S. D. Porzio, S. Söldner-
Rembold and S. Wren Phys. Rev. D 95, no. 2,
023012 (2017).
[14] G. Barr, NA61 beyond 2020 workshop,
https://indico.cern.ch/event/629968/contributions/2659929
1
Roger Wendell
2019 ( 31 ) 2 8
1
1998
3
3 θ12, θ23, θ13
2 Δm221,Δm232 CP 1 δCP
6
θ23 |Δm232|m2 m3
m3 > m2 m3 < m2
1970
SNO
2002
θ12 Δm221 Δm
221
θ13
J-PARC
295 km
T2K θ13
2011 1
T2K 2013
CP
11
2017
183
-
2
ニュートリノ
陽子の崩壊
超新星爆発 太陽大気J-PARC大強度加速器による高品質ニュートリノビーム
ハイパーカミオカンデ装置スーパーカミオカンデの約10倍の有効質量と2倍の光感度
水槽(超純水)直径74m × 高さ60m
写真提供:JAEA/KEK J-PARCセンター
新型光センサー(従来の2倍の感度)4万本
総質量 26万トン有効質量 19万トン
1:
1
p → e+ + π0 201.6 × 1034
2
Hyper-Kamiokande
Super-Kamiokande
J-PARC
CP
J-PARC
CP
1
8 km 650 m
60 m × 74 m26
10 19
50 cm 4
2
2
7.8 cm 19
Multi-PMT
15
300
2015 1
2020
3
3.1
CP1 CP
CP
1T2K 2σ CP[1]
184
-
2
ニュートリノ
陽子の崩壊
超新星爆発 太陽大気J-PARC大強度加速器による高品質ニュートリノビーム
ハイパーカミオカンデ装置スーパーカミオカンデの約10倍の有効質量と2倍の光感度
水槽(超純水)直径74m × 高さ60m
写真提供:JAEA/KEK J-PARCセンター
新型光センサー(従来の2倍の感度)4万本
総質量 26万トン有効質量 19万トン
1:
1
p → e+ + π0 201.6 × 1034
2
Hyper-Kamiokande
Super-Kamiokande
J-PARC
CP
J-PARC
CP
1
8 km 650 m
60 m × 74 m26
10 19
50 cm 4
2
2
7.8 cm 19
Multi-PMT
15
300
2015 1
2020
3
3.1
CP1 CP
CP
1T2K 2σ CP[1]
3
CP
[2] 2
δCP
π+ → νμ+μ+π− → νμ+μ−
J-PARC 295 km
νμ → νeCP
2 δCP
2018 500 kW J-PARC Main
Ring 1.3MW
T2K 280m
ND280
ND280
ND280
1 km 1,000
2
2: νμ ν̄μ
νe ν̄e
δCP sin2 2θ13 = 0.1
δCP δCP = 0
10
3: δCP sin δCP 0 CP
Multi-PMT
3 10 sin δCP 0
CP
δCP 5σ δCP
57% T2K −90◦10 δCP
7◦ 23◦ CP
185
-
4
3.2
K
100 MeV 1 TeV
10 km 10,000 km
νμ → ντ
3
MSW
νμ ↔ νe
DUNE
1300 km
2-
10 GeV
4
5
4:
νμ → νe ν̄μ → ν̄ecos θ < 0 2-
10 GeV
θ23
10 3.8σ
θ23
45◦ ν2 ν3θ23 45
◦
θ23
θ23
θ23 45◦
θ23
186
-
4
3.2
K
100 MeV 1 TeV
10 km 10,000 km
νμ → ντ
3
MSW
νμ ↔ νe
DUNE
1300 km
2-
10 GeV
4
5
4:
νμ → νe ν̄μ → ν̄ecos θ < 0 2-
10 GeV
θ23
10 3.8σ
θ23
45◦ ν2 ν3θ23 45
◦
θ23
θ23
θ23 45◦
θ23
5
5:
θ23
3 sin2 θ23 = 0.4 0.5 0.6
νμ → ντ
3.3
(4p →He+2e++2νe)
6 1990
SNO
CPT
θ12 Δm221 7 θ12
Δm221 2σ
MSW
Δm221
6:
[3] pp
CNO
4%
2σ
4σ
MSW
[5] MaVaN [6] [7]3He+ p → 4He+ e+ + νe
hep
3.4
187
-
6
7: (θ12, Δm221)
[4] KamLAND
3σ
1987 2 23 IMB Baksan
SN1987A
24
30
2 3
SASI Standing Accersion Shock
Instability [9]
( 8) 1
SASI
5 7
SASI
1◦ ∼ 1.3◦1
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SK-Gd
SK-Gd 10 4σ
188
-
6
7: (θ12, Δm221)
[4] KamLAND
3σ
1987 2 23 IMB Baksan
SN1987A
24
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2018 6 2019 1
SK-Gd
SK-Gd 10 4σ
7
4
CP
1016 GeV
SU(5) SO(10)
τp ∼ 1035
1035
1035
6× 1034 (5× 1034
p → e+ + π0 π0
9 10
p → e++π0 τp < 6×103410 3σ
p → ν̄ +K+
9: 10
1.7× 1034100MeV/c
100 ∼ 250MeV/c
K+
K+ → μ+ + νμ64% K+ → π+ + π0 21%
K+
p → e+ + π0
40% 6MeV
K+ τ ∼ 12 ns
2
p → ν̄ + K+τp < 2 × 1034 10 3σ
189
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8
5
1996
20
K2K T2K
300 km
T2K
2020
[10]
[1] K. Abe et al. (T2K Collaboration), Phys. Rev.
Lett. 121, 171802 (2018).
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ApJ. 743, 24 (2011).
[4] Y. Koshio, AIP Conf. Proc. 1666, 090001 (2015).
[5] A. Friedland, C. Lunardini, C. Pena-Garay,
Phys. Lett. B 594, 347 (2004).
[6] M. Barger, P. Huber, D. Marfatia, Phys. Rev.
Lett. 95, 211802 (2005).
[7] P. C. de Holanda and A. Yu. Smirnov, Phys. Rev.
D 69, 113002 (2004).
[8] H. T. Janka, K. Langanke, A. Marek,
G. Martinez-Pinedo and B. Mueller, Phys. Rept.
442, 38 (2007).
[9] I. Tamborra, F. Hanke, B. Müller, H. T. Janka
and G. Raffelt, Phys. Rev. Lett. 111, no. 12,
121104 (2013).
[10] ”Hyper-Kamiokande Design Report”, K. Abe
et al. (Hyper-Kamiokande Proto-Collaboration),
https://arxiv.org/abs/1805.04163 (2018).
190