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

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 (ー) (ー) • 190 kton (Hyper-K, 2026~) • 22.5 kton (Super-K, ~2026) 1.3 MW (2025) Super-K Hyper-K Intense Neutrino Beam for ν μ →ν e study • ~1MW (2022) Neutrino oscillation experiments in Japan “far” detector (FD) Kamioka okai Tokai 295 km Seamless program with timely physics results

KNO the 2 nd Hyper-K detector in Korea �3

4 The T2K Collaboration (2018) ~500 members, 66 Institutes, 12 countries Americas 115 Asia 107 Canada 51 Japan 105 Vietnam 2 USA 64 Europe 259 34 France Germany 5 Italy 25 Poland 28 Russia 26 Spain 15 Switzerland 27 UK 99 500 New institutions since 2017: WAGASCI and BabyMIND IOP/IFIRSE (Vietnam) collaboration NEW Glasgow (UK) members will join T2K COUNTRY! SLAC (USA) Collaboration Imperial College Morgan O. London Wascko T2K IFOP, 2018 06 22 ! 4

Korean group in K2K and T2K チャンネル数 ボード 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 内部ゲイン トを通じて外部とのデータ通信を行う。 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 collaboration from the beginning with the first international contributions to のボード前面のスロットには子ボードである を搭載し、内蔵のイーサーネットポー 簡単に述べる。 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 the beam monitor electronics. 図 クレートのスロットに挿入され、独自に 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 • The Korean group was in the T2K CPU Board FINESSE × 4 slot Trigger Board LAN

6 ν CPV today ICHEP 2018, Seoul Latest oscillation results from T2K 14 Constraint on δ CP Phill Litchfield, Constraint on 𝜺 𝐃𝐐 on behalf of the Collaboration • Marginalise over everything except 𝜀 CP • Stronger than expected • Compare to frequentist critical values 2018/07/17 T2K expected sensitivity • Exclude CP conservation at > 2𝜏 C.L. • Inverted ordering only just < 2𝜏 C.L. • In toy experiments at best fit, 2𝜏 exclusion of 𝜀 = {0, 𝜌} 2𝜏 C.L. occurs in 19% of cases 2018/07/17 Phill Litchfield

7 T2K: Precision era of Δ m 2 31/32 , θ 23 T2K Run 1-9c Preliminary 3 − × 10 2.8 • T2K continues to favor maximal Normal - 68CL ) -4 Normal - 90CL Best fit c Inverted - 68CL 2 mixing ( θ 23 =45deg) 2.7 (IH) (eV Inverted - 90CL 2.6 • Global picture rapidly changing 13 2 2.5 m ∆ (NH), 2.4 32 2.3 2 m ∆ 2.2 0.3 0.35 0.4 0.45 0.5 0.55 0.6 0.65 0.7 2 sin ( ) θ 23 18

There are rich physics programs in front of us. physics in neutrinos. discovery in particle physics. 8 -II ND280 Upgrade 1.3MW J-PARC This talk Prospect • CP violation in neutrinos could be within our reach. • Let’s utilize the current facilities to explore new • Let’s work together to build a new facility for a

9 2 year delay T2K-II T2K to T2K-II arXiv:1609.04111 T2K Run1-9c Preliminary Latest Result of T2K (NEUTRINO 2018) Upgrade Project of the T2K Near Detector 30 Normal Inverted 25 Konosuke Iwamoto (University of Tokyo) ln(L) On behalf of the ND280 Upgrade Working Group 20 ∆ 15 -2 ICHEP 2018, Seoul 10 5 0 1 − − − 3 2 1 0 1 2 3 δ CP T2K rejects CP conservation at 2 - CL in both mass hierarchies • 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 Mass hierarchy unknown ~40% of the * +, values with known mass hierarchy 3

10 3

w/ ~2 year delay Mid-term plan of MR upgrade for Neutrino ③ RF anode PS upgrade ④ 10 th FT3L cavity 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 Target Power ~1.3 MW 2019 2015 2017 2020 2022 2024 2026 JFY

CERN SPSC-EOI-015 interactions to improve the systematic. 12 Near Detector Upgrade Expression of Interest for the January 2017 SPSC Near Detectors based on gas TPCs for neutrino long baseline experiments 1 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 37m 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 2.5° University of T okyo, Institute for Cosmic Ray Research, Kamioka Obs., Kamioka, Japan (off-axis) 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 0° C. Bronner, M. Hartz, M. Vagins Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of T okyo, (on-axis) 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 19 m 1 Corresponding authors: Alain Blondel (alain.blondel@cern.ch), Marco Zito (marco.zito@cea.fr) 1 • T2K steadily improves the systematic uncertainty. • ~18% (2011) → ~9% (2014) → ~6% (2016) [→ ~3% (2020)] • Near Detector upgrade to understand the neutrino-nucleus

13 ND280 upgrade status Upgrade Old • 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. Super FGD Horizontal TPC 13

T2K-II Physics Sensitivity assuming MH unknown (Note) Although T2K alone can't measure MH, we can help with the MH 3σ assuming MH known measurement by, ie, combining T2K + NOVA 14 C.L. is 49% (36%) of possible true values of δ CP assuming the MH is known. sin 2 θ 23 =0.43, 0.50, 0.60? • For which true δ CP values can we find CP violation assuming true • The fractional region for which sinδ CP =0 can be excluded at the 99% (3σ) 20 20 =0 =0 21 21 20x10 POT w/ eff. stat. & sys. improvements 20x10 POT w/ eff. stat. & sys. improvements 21 21 CP 7.8x10 POT w/ 2016 sys. errs. CP 7.8x10 POT w/ 2016 sys. errs. δ 2 δ 2 True sin =0.43 15 True sin θ =0.43 15 θ to exclude sin 23 to exclude sin 23 2 2 True sin =0.50 True sin =0.50 θ θ 23 23 2 2 True sin =0.60 True sin =0.60 θ θ 23 23 10 10 3 C.L. σ 3 σ C.L. 99% C.L. 99% C.L. 5 5 2 2 90% C.L. 90% C.L. χ χ ∆ ∆ 0 0 200 100 0 100 200 − − 200 100 0 100 200 − − True ( ) δ ° True ( ) δ ° CP CP

T2K-II Physics Sensitivity δ(sin 2 θ 23 ) δ(Δm 322 ) standard models 15 3 − 10 × 3 Stat. only POT by 2014 , 90% C.L Systematics 21 7.8x10 POT, 90% C.L 2.8 21 20x10 POT w/improvement, 90% C.L 32 2 m 2.6 ∆ • Precisions of sin 2 θ 23 and Δm 322 2.4 2.2 0.4 0.5 0.6 2 sin θ 23 15 5 (%) (%) 2 sin =0.43 θ 2 23 Stat. only sin θ =0.43 23 Stat. only 4 23 32 θ 2 2 sin =0.50 θ m 2 2 sin =0.5 23 θ Uncertainty on sin 10 23 Systematics 2 ∆ Systematics sin θ =0.60 2 3 sin =0.6 23 θ Uncertainty on 23 2 5 1 0 0 0 5 10 15 20 0 5 10 15 20 21 Protons-on-Target (x10 ) 21 Protons-on-Target (x10 ) • More physics for Neutrino Interactions and non-

16 Accolades for T2K shared with Prof. Soo-Bong Kim and Prof. Yifang Wang Wan Imperial College Morgan O. London Wascko T2K IFOP, 2018 06 22 ! 17