T2K to T2K-II and ND280/J-PARC beam upgrade T. Nakaya (Kyoto - - PowerPoint PPT Presentation

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T2K to T2K-II and ND280/J-PARC beam upgrade T. Nakaya (Kyoto - - PowerPoint PPT Presentation

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1 ICHEP 2018 Satellite Meeting for Hyper-Kamiokande and KNO July 8 2018, Seoul T2K to T2K-II and ND280/J-PARC beam upgrade T. Nakaya (Kyoto U./Kavli-IPMU) 500 kW (today) 2 () () 190 kton (Hyper-K, 2026~) 22.5

slide-1
SLIDE 1

T2K to T2K-II and ND280/J-PARC beam upgrade

  • T. Nakaya (Kyoto U./Kavli-IPMU)

1

ICHEP 2018 Satellite Meeting for Hyper-Kamiokande and KNO July 8 2018, Seoul

slide-2
SLIDE 2

Neutrino oscillation experiments in Japan

Intense Neutrino Beam for νμ→νe study

2

  • kai

Tokai Kamioka

“far” detector (FD) 295 km

Super-K Hyper-K

  • 500 kW (today)
  • ~1MW (2022)
  • 1.3 MW (2025)
  • 22.5 kton (Super-K, ~2026)
  • 190 kton (Hyper-K, 2026~)

(ー) (ー)

Seamless program with timely physics results

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SLIDE 3

KNO the 2nd Hyper-K detector in Korea

3

slide-4
SLIDE 4

4

Imperial College London Morgan O. Wascko

T2K IFOP, 2018 06 22

The T2K Collaboration (2018)

!4

~500 members, 66 Institutes, 12 countries

Asia 107 Japan 105 Vietnam 2 Americas 115 Canada 51 USA 64 Europe 259 France 34 Germany 5 Italy 25 Poland 28 Russia 26 Spain 15 Switzerland 27 UK 99 500

New institutions since 2017: IOP/IFIRSE (Vietnam) Glasgow (UK) SLAC (USA)

WAGASCI and BabyMIND collaboration members will join T2K Collaboration

NEW COUNTRY!

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SLIDE 5

Korean group in K2K and T2K

5

K2K SciBar Detector Front-End-Electronics boards were built in Korea.

第 章 ビームラインにおけるデータ収集について

読み出し回路：

ビームモニターの信号は波形読み出しを行う。こうすることでバンチごとの信号量からより詳しいビー ム情報を得る事ができる。波形読み出しには２種類の 回路を用いている。それぞれについて 簡単に述べる。

CPU Board FINESSE × 4 slot LAN Trigger Board

図 の写真 図 の写真

は高エネルギー加速器研究機構で開発された読み出し回路である 。親ボードである は クレートのスロットに挿入され、独自に を搭載し、内蔵のイーサーネットポー トを通じて外部とのデータ通信を行う。 のボード前面のスロットには子ボードである を最大４枚挿入して使用する。ボードの背面には子ボードであるトリガーボードを挿 入して使用する。表 に の仕様をまとめる。

表 の仕様

最大サンプリングレート 入力レンジ 内部ゲイン 内部ゲイン サンプリング精度 チャンネル数 ボード 内部ゲイン または によるデータ収集は次のような方法で行う。各 にはゲートの時間とサン プリング周波数を決めるための 信号をいれる。ビームタイミングに合わせて外部から に ビームトリガーを配り、ゲートを開いて、 変換を行う。変換後から 変換が十分に完了

  • The Korean group was in the T2K

collaboration from the beginning with the first international contributions to the beam monitor electronics.

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SLIDE 6

6

14

Phill Litchfield 2018/07/17

Constraint on 𝜺𝐃𝐐

  • Marginalise over everything except 𝜀CP
  • Compare to frequentist critical values
  • Exclude CP conservation at > 2𝜏 C.L.
  • Inverted ordering only just < 2𝜏 C.L.
  • Stronger than expected
  • In toy experiments at best fit,

2𝜏 exclusion of 𝜀 = {0, 𝜌}

  • ccurs in 19% of cases

T2K expected sensitivity 2𝜏 C.L.

Latest oscillation results from T2K

Phill Litchfield,

  • n behalf of the Collaboration

2018/07/17

ICHEP 2018, Seoul

Constraint on δCP

ν CPV today

slide-7
SLIDE 7

7 18

T2K: Precision era of Δm2

31/32, θ23

)

23

θ (

2

sin

0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7

)

  • 4

c

2

(IH) (eV

13 2

m ∆ (NH),

32 2

m ∆

2.2 2.3 2.4 2.5 2.6 2.7 2.8

3 −

10 ×

Normal - 68CL Normal - 90CL Inverted - 68CL Inverted - 90CL Best fit

T2K Run 1-9c Preliminary

  • T2K continues to favor maximal

mixing (θ23=45deg)

  • Global picture rapidly changing
slide-8
SLIDE 8

Prospect

  • CP violation in neutrinos could be within our reach.

There are rich physics programs in front of us.

  • Let’s utilize the current facilities to explore new

physics in neutrinos.

  • Let’s work together to build a new facility for a

discovery in particle physics.

8

  • II

ND280 Upgrade 1.3MW J-PARC

This talk

slide-9
SLIDE 9

9

  • Beam power upgrade

(0.46 MW→1.3 MW)

  • Plan to accumulate 20×10%& POT

by 2026

  • Reaches > 3) sensitivity to CP

violation in lepton sector (for ~40% of the *+, values with known mass hierarchy

3

T2K to T2K-II

arXiv:1609.04111

CP

δ

3 − 2 − 1 − 1 2 3

ln(L) ∆

  • 2

5 10 15 20 25 30 Normal Inverted T2K Run1-9c Preliminary

Latest Result of T2K (NEUTRINO 2018)

T2K rejects CP conservation at 2- CL in both mass hierarchies

Mass hierarchy unknown

Konosuke Iwamoto (University of Tokyo) On behalf of the ND280 Upgrade Working Group

Upgrade Project of the T2K Near Detector ICHEP 2018, Seoul

1

T2K-II

2 year delay

slide-10
SLIDE 10

10 3

slide-11
SLIDE 11

JFY

Mid-term plan of MR upgrade for Neutrino

2015 2017 2020 2022 2024 2026 2019

① Magnet PS upgrade 2.48 à 1.3 s cycle ② Add Two 2ndH_RFs (FT3M) ⑤ 1.3 à 1.16 s cycle ③ RF anode PS upgrade

Target Power ~1.3 MW

④ 10th FT3L cavity

w/ ~2 year delay

slide-12
SLIDE 12
  • T2K steadily improves the systematic uncertainty.
  • ~18% (2011) → ~9% (2014) → ~6% (2016) [→ ~3% (2020)]
  • Near Detector upgrade to understand the neutrino-nucleus

interactions to improve the systematic.

12

Expression of Interest for the January 2017 SPSC

Near Detectors based on gas TPCs for neutrino long baseline experiments1

  • P. Hamacher-Baumann, L. Koch, T. Radermacher, S. Roth, J. Steinmann
RWTH Aachen University, III. Physikalisches Institut, Aachen, Germany
  • V. Berardi, M.G. Catanesi, R.A. Intonti, L. Magaletti, E. Radicioni
INFN and Dipartimento Interateneo di Fisica, Bari, Italy
  • S. Bordoni, M. Capeans Garrido, A. De Roeck, R. Giuda, B. Mandelli,
  • D. Mladenov, M. Nessi, F. Resnati
CERN, Geneva, Switzerland
  • Z. Liptak, J. Lopez, A. Marino, Y. Nagai, E. D. Zimmerman
University of Colorado at Boulder, Department of Physics, Boulder, Colorado, U.S.A. Y.Hayato, M. Ikeda, M. Nakahata, Y. Nakajima, Y. Nishimura University of T
  • kyo, Institute for Cosmic Ray Research, Kamioka Obs., Kamioka, Japan
  • M. Antonova, A. Izmaylov , A. Kostin, M. Khabibullin, A. Khotjantsev, Y. Kudenko,
  • A. Mefodiev, O. Mineev , T. Ovsiannikova, S. Suvorov, N. Yershov
Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
  • F. Sanchez, M. Cavalli-Sforza, T. Lux, B. Bourguille, M. Leyton
Institut de Fisica d’Altes Energies (IFAE), The Barcelona Institute of Science and T echnology, Campus UAB, Bellaterra (Barcelona) Spain
  • J. Amey, P.J. Dunne , P. Jonsson, R.P. Litch3eld, W. Ma, L. Pickering
  • M. A. Uchida, Y. Uchida, M.O. Wascko,C.V.C. Wret
Imperial College, London, United Kingdom
  • C. Bronner, M. Hartz, M. Vagins
Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of T
  • kyo,
Kashiwa, Chiba, Japan
  • S. Bolognesi , D. Calvet, P. Colas, A. Delbart, S. Emery, F. Gizzarelli, M.
Lamoureux, M. Martini, E. Mazzucato, G. Vasseur, M. Zito IRFU, CEA Saclay, Gif-sur-Yvette, France 1 Corresponding authors: Alain Blondel (alain.blondel@cern.ch), Marco Zito (marco.zito@cea.fr) 1

CERN SPSC-EOI-015

0° (on-axis) 2.5° (off-axis)

37m

19 m

Near Detector Upgrade

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SLIDE 13

13

ND280 upgrade status

  • Main purpose is to increase

statistics and the acceptance of the detector.

  • Design of the upgrade in

progress.

  • Technical Design Report by

the end of this year.

13

Super FGD Upgrade Old Horizontal TPC

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SLIDE 14

T2K-II Physics Sensitivity

  • For which true δCP values can we find CP violation assuming true

sin2θ23=0.43, 0.50, 0.60?

  • The fractional region for which sinδCP=0 can be excluded at the 99% (3σ)

C.L. is 49% (36%) of possible true values of δCP assuming the MH is known.

14

assuming MH unknown assuming MH known

) ° (

CP

δ True

200 − 100 − 100 200

=0

CP

δ to exclude sin

2

χ ∆

5 10 15 20

=0.43

23

θ

2

True sin =0.50

23

θ

2

True sin =0.60

23

θ

2

True sin POT w/ eff. stat. & sys. improvements

21

20x10 POT w/ 2016 sys. errs.

21

7.8x10

90% C.L. 99% C.L. C.L. σ 3

) ° (

CP

δ True

200 − 100 − 100 200

=0

CP

δ to exclude sin

2

χ ∆

5 10 15 20

=0.43

23

θ

2

True sin =0.50

23

θ

2

True sin =0.60

23

θ

2

True sin

90% C.L. 99% C.L. C.L. σ 3

POT w/ eff. stat. & sys. improvements

21

20x10 POT w/ 2016 sys. errs.

21

7.8x10

3σ

(Note) Although T2K alone can't measure MH, we can help with the MH measurement by, ie, combining T2K + NOVA

slide-15
SLIDE 15

T2K-II Physics Sensitivity

  • Precisions of sin2θ23 and Δm322

15

23

θ

2

sin

0.4 0.5 0.6

32 2

m ∆

2.2 2.4 2.6 2.8 3

3 −

10 ×

POT by 2014 , 90% C.L POT, 90% C.L 21 7.8x10 POT w/improvement, 90% C.L 21 20x10
  • Stat. only
Systematics

)

21

Protons-on-Target (x10

5 10 15 20

(%)

23

θ

2

Uncertainty on sin

5 10 15

=0.43

23

θ

2

sin =0.50

23

θ

2

sin =0.60

23

θ

2

sin

  • Stat. only

Systematics

)

21

Protons-on-Target (x10

5 10 15 20

(%)

32 2

m ∆ Uncertainty on

1 2 3 4 5

=0.43

23

θ

2

sin =0.5

23

θ

2

sin =0.6

23

θ

2

sin

  • Stat. only

Systematics

δ(sin2θ23) δ(Δm322)

  • More physics for Neutrino Interactions and non-

standard models

slide-16
SLIDE 16

16

Imperial College London Morgan O. Wascko

T2K IFOP, 2018 06 22

Accolades for T2K

!17

shared with Prof. Soo-Bong Kim and Prof. Yifang Wang Wan

slide-17
SLIDE 17

Conclusion

  • T2K-II has a discovery potential of neutrino CP

violation with 3 sigma sensitivity.

  • T2K and T2K-II are crucial experiments on the path

to Hyper-Kamiokande.

  • Realization of the Higher Power Neutrino Beam.
  • Precise understandings of neutrino interactions.
  • Let’s explore neutrino physics together with a great

beam and great detectors.

17