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2011 Fiscal Year Annual Research Report

ILCのための最先端測定器の国際的新展開

Research Project

Project/Area Number 23000002
Research InstitutionTohoku University

Principal Investigator

山本 均  東北大学, 理学(系)研究科(研究院), 教授 (00333782)

Co-Investigator(Kenkyū-buntansha) 山下 了  東京大学, 素粒子物理国際研究センター, 准教授 (60272465)
藤井 恵介  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (30181308)
宮本 彰也  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (50174206)
杉本 康博  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (70196757)
杉山 晃  佐賀大学, 工学(系)研究科(研究院), 教授 (80187674)
竹下 徹  信州大学, 理学部, 教授 (70154995)
川越 清以  九州大学, 理学(系)研究科(研究院), 教授 (40183785)
佐貫 智行  東北大学, 理学(系)研究科(研究院), 准教授 (70323491)
Keywords国際リニアコライダー / 素粒子検出器 / 半導体検出器 / 電子デバイス / ヒッグス粒子 / ネットワーク / 素粒子の標準理論
Research Abstract

測定器最適化では、反応点検出器の情報を使ったクォーク種同定法の開発を二人の科研費研究員を割り当てて本格的に開始した。反応点測定器は、ピクセルサイズが6ミクロン角の小型試作機および、チップサイズが約1cm角の大型試作機を試作して、その基本動作を確認した。同時にFPCCDからの信号読出しのためのフロントエンド集積回路の開発を行ってセンサーと読出しチップを組み合わせて総合試験を行った。飛跡検出器では、エンドプレートの質量を下げるための高機能PCボードに必要な冷却試験、間欠的電源供給の個別試験を行い、その結果に基づいてPCボードの設計試作した。ガス増幅部に関しては放電を押さえる支持機構の工学設計をおこなった。カロリメータに関しては、シンチレータストリップと半導体光検出器MPPC、および読み出し用エレクトロニクスを一体化した、ILC実験測定器とほぼ同じ構造のプロトタイプモジュールを設計し、シリコンパッドセンサーのテストベンチを立ち上げ、日本の製作会社とともに要素開発を開始した。また、シンチレータストリップに対応するジェットエネルギー再構成のソフトウェアを開発し、実証した。測定器インテグレーションは、地下実験室ホールまで、測定器コンポーネントを運び込み、実際に組み立てる手法を策定した。荷電粒子飛跡再構成では、オブジェクト指向設計と C++ により一般飛跡再構成プログラムを開発し、基本的な飛跡認識アルゴリズムをトポロジカル・カルマン・フィルターを用いて開発した。さらに、ケーブル・冷却パイプ等による不感領域や測定器応答の非一様性などを組み込んだ反応点測定器、飛跡検出器、カロリメータの現実的なシミュレータを作成し、データベースによるデータ管理システムやDIRACジョブ管理ツールを整備した。

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

反応点検出器は小型と大型のプロトタイプを予定通りに製作し、シリコンカロリメータのテストベンチを立ち上げて基本的な試験を行い、飛跡検出器の放電を押さえる設計を実証し、ストリップ型かロリメータが必要とされるエネルギー分解能があることを現実的なシミュレーションで実証した。

Strategy for Future Research Activity

反応点検出器では、ピクセルサイズが6μmの小型のFPCCDの動作確認を行うのと平行して大型FPCCDの開発を進める。FPCCDの多チャンネル高速読出しのための実機に近いASICを開発する。電磁シャワーカロリメータでは、シンチレータセンサー部と光センサーを一体化した設計製作を行い、要素テストで基本動作を確認紙、これをDESY研究所の電子ビームを用いて性能検証を行う。ハドロンシャワーカロリメータでは、シンチレータストリップによる新型のハドロンカロリメータのシミュレーションをさらに改善してパッド型に対してコストパーフォーマンスが有利であることを実証する。シリコンカロリメータでは、シリコンパッドセンサーは、赤外レーザーを用いた検査システムを立ち上げ、シリコン電磁カロリメータ技術プロトタイプのビームテストをDESYで行う。シンチレータをシリコンを組み合わせたハイブリッド電磁カロリメータについて、シミュレーション研究に依って設計の最適化を行う。飛跡再構成では、実機における非均一磁場中での飛跡再構成に向けて、分割ヘリックス飛跡モデル概念によるカルマンフィルター・アルゴリズムを開発する。

  • Research Products

    (50 results)

All 2011 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (44 results) (of which Invited: 15 results) Remarks (1 results)

  • [Journal Article] TPC development by the LCTPC collaboration for the ILD Detector at ILC2011

    • Author(s)
      T. Fusayasu
    • Journal Title

      IEEE

      Volume: NSS/MIC Pages: 1413-1416

    • DOI

      10.1109/NSSMIC.2011.6154340

    • Peer Reviewed
  • [Journal Article] Cosmic ray tests of a GEM-based TPC prototype operated in Ar-CF4-isobutane gas mixtures2011

    • Author(s)
      Kobayashi et al.
    • Journal Title

      Nucl. Instrum. Meth.

      Volume: A641 Pages: 37-47

    • DOI

      10.1109/NIM.2011.6746565

    • Peer Reviewed
  • [Journal Article] Measuring the top Yukawa coupling at the ILC at sqrt(s) = 500 GeV2011

    • Author(s)
      R. Yonamine, K. Ikematsu, T. Tanabe, K. Fujii, Y. Kiyo, Y. Sumino and H. Yokoya
    • Journal Title

      Phys. Rev.

      Volume: D84 Pages: 14033-14041

    • DOI

      10.1103/PhysRevD.84.014033

    • Peer Reviewed
  • [Journal Article] Discrimination of New Physics Models with the International Linear Collider2011

    • Author(s)
      M. Asano, T. Saito, T. Suehara, K. Fujii, R. S. Hundi, H. Itoh, S. Matsumoto,N. Okada, Y. Takubo and H. Yamamoto
    • Journal Title

      Phys. Rev.

      Volume: D84 Pages: 115003-115042

    • DOI

      10.1103/PhysRevD.84.115003

    • Peer Reviewed
  • [Journal Article] International Linear Collider Physics and Detectors 2011 Status Report2011

    • Author(s)
      editors: …H. Yamamoto (8/10)… authors: …K.Fuji (14/32)…A. Miyamoto (22/32)…Y. Sugimoto (27/32)…
    • Journal Title

      KEK Report

      Volume: 2011-5 Pages: 1-254

  • [Presentation] R&D Status of FPCCD Vertex Detector for ILD2011

    • Author(s)
      Y.Sugimoto
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Developments of Readout ASIC and CCD for FPCCD vertex detector2011

    • Author(s)
      E.Kato
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] FPCCD digitization and reconstruction2011

    • Author(s)
      D.Kamai
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Generator samples for DBD benchmark studies2011

    • Author(s)
      Akiya Miyamoto
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Update on Japanese Mountain Site2011

    • Author(s)
      Yasuhiro Sugimoto
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] LCFIVertexPlus: flavour tagging for linear colliders2011

    • Author(s)
      Tomohiko Tanabe
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Higgs branching fraction study in ILC2011

    • Author(s)
      Hiroaki Ono
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Results from CALICE Scintillator-based ECAL2011

    • Author(s)
      Katsushige Kotera
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Measuring the top Yukawa coupling at 500 GeV ILC2011

    • Author(s)
      Tomohiko Tanabe
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Status of ZHH study with ILD full simulation2011

    • Author(s)
      Taikan SUEHARA
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Long-lived stau at the ILC2011

    • Author(s)
      Wataru Yamaura
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Little Higgs with T-parity measurements at the ILC2011

    • Author(s)
      Eriko Kato
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Year and Date
      20110926-20110930
  • [Presentation] Total Measurement Calorimetry

    • Author(s)
      Tohru Takeshita
    • Organizer
      Technology and Instrumentation in Particle Physics 2011
    • Place of Presentation
      CERN Geneva, Switzerland
    • Invited
  • [Presentation] Detectors for Future Colliders

    • Author(s)
      Hitoshi Yamamoto
    • Organizer
      Technology and Instrumentation in Particle Physics 2011
    • Place of Presentation
      CERN Geneva, Switzerland
    • Invited
  • [Presentation] Improved jet clustering algorithm with vertex information for multi-b final states

    • Author(s)
      Taikan Suehara
    • Organizer
      Technology and Instrumentation in Particle Physics 2011
    • Place of Presentation
      CERN Geneva, Switzerland
  • [Presentation] Beyond the Standard Model: SUSY, Cosmology and Alternative; summary

    • Author(s)
      Taikan SUEHARA
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Invited
  • [Presentation] Simulation, Detector Performance and Reconstruction; summary

    • Author(s)
      Tomohiko Tanabe
    • Organizer
      International Workshop on Future Linear Colliders
    • Place of Presentation
      Granada, Spain
    • Invited
  • [Presentation] Innovative technologies for detectors for future colliders

    • Author(s)
      Hitoshi Yamamoto
    • Organizer
      The 10th ICFA Seminar on Future Perspectives on Particle Physics
    • Place of Presentation
      CERN Geneva, Switzerland
    • Invited
  • [Presentation] Linear Collider Physics and Detector Working Group

    • Author(s)
      Akiya Miyamoto
    • Organizer
      18th ACFA Plenary Meeting
    • Place of Presentation
      Shanghai, China
    • Invited
  • [Presentation] Physics at the ILC

    • Author(s)
      Kiyotomo Kawagoe
    • Organizer
      The 3rd LC FORUM
    • Place of Presentation
      DESY Hamburg, Germany
    • Invited
  • [Presentation] Precision Higgs Studies at the ILC

    • Author(s)
      Keisuke Fujii
    • Organizer
      Workshop on Beyond the Standard Model and The Origin of Higgs
    • Place of Presentation
      Kobe, Japan
    • Invited
  • [Presentation] Japanese Effort towards ILC

    • Author(s)
      Satoru Yamashita
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Study of MPPC saturation performance

    • Author(s)
      Tohru Takeshita
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] 1 TeV pair background with ILD_O1_v02 mode

    • Author(s)
      Akiya Miyamoto
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] ILD: DBD status and schedule

    • Author(s)
      Yasuhiro Sugimoto
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] ILD: Common data sample

    • Author(s)
      Akiya Miyamoto
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] ACFA workshop summary

    • Author(s)
      Akiya Miyamoto
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Higgs -> gamma gamma branching ratio

    • Author(s)
      Constantino Calancha
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] MDI summary

    • Author(s)
      Toshiaki Tauchi
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Progress of ILD towards DBD

    • Author(s)
      Tomohiko Tanabe
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Higgs branching fractions study in ILC

    • Author(s)
      Hiroaki Ono
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Progress and status of the LCTPC

    • Author(s)
      Philippe Gros
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Scintillator ECAL reconstruction

    • Author(s)
      Katsushige Kotera
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] LCFI-Plus update

    • Author(s)
      Taikan SUEHARA
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Study of Higgs self-coupling at the ILC

    • Author(s)
      Taikan Suehara
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] The CALICE Si-W ECAL - physics prototype

    • Author(s)
      Tamaki Yoshioka
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Scintillator ECAL beam test results and systematics study

    • Author(s)
      Katsushige Kotera
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Design/Construction of Scintillator Strip ECAL

    • Author(s)
      Katsushige Kotera
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Calorimeter/Muon/DAQ summary

    • Author(s)
      Tamaki Yoshioka
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
    • Invited
  • [Presentation] Precision measurement of Higgs to gauge bosons couplings

    • Author(s)
      Junping Tian
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Hybrid ECAL study for ILC ECAL

    • Author(s)
      Hiraku Ueno
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Measuring very light gravitino with stau NLSP at the ILC

    • Author(s)
      Ryo Katayama
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] FPCCD reconstruction

    • Author(s)
      Daisuke Kamai
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Presentation] Silicon pad study including sensor radiation test

    • Author(s)
      Kou Ohishi
    • Organizer
      Joint ACFA Physiscs and Detector Workshop and GDE Meeting on Linear Collider
    • Place of Presentation
      Daegu, Korea
  • [Remarks] ILC測定器特別推進研究

    • URL

      http://epx.phys.tohoku.ac.jp/ilcsuishin/

URL: 

Published: 2014-07-24  

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