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KOMATSUBARA Takeshi  小松原 健

ORCIDConnect your ORCID iD *help
… Alternative Names

Komatsubara Takeshi  小松原 健

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Researcher Number 30242168
Other IDs
External Links
Affiliation (Current) 2025: 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, 教授
Affiliation (based on the past Project Information) *help 2017 – 2019: 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, 教授
2015: 高エネルギー加速器研究機構, 素粒子原子核研究所, 教授
2011 – 2015: 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, 教授
2011 – 2012: 高エネルギー加速器研究機構, 素粒子原子核研究所, 教授
2007 – 2011: 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 … More
2006: 高エネルギー加速器研究機構, 素粒子原子核研究所, 助教授
2005 – 2006: 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, 助教授
2004: 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, 助教授
2003: IPNS, associate Professor, 素粒子原子核研究所, 助教授
1997 – 2003: 高エネルギー加速器研究機構, 素粒子原子核研究所, 助手
1993 – 1995: 東京大学, 原子核研究所, 助手 Less
Review Section/Research Field
Principal Investigator
Particle/Nuclear/Cosmic ray/Astro physics / 素粒子・核・宇宙線
Except Principal Investigator
Particle/Nuclear/Cosmic ray/Astro physics / 素粒子・核・宇宙線 / Science and Engineering
Keywords
Principal Investigator
稀崩壊 / K中間子 / 大強度陽子ビーム / 加速器 / 素粒子実験 / ダーク / フレーバー物理 / 新粒子探索 / 崩壊 / 標準模型 … More / 分岐比 / 陽子加速器 / E949実験 / E787実験 / 大強度ビーム … More
Except Principal Investigator
稀崩壊 / K中間子 / J-PARC / CP対称性の破れ / rare decay / PbWO4 / GSO / K中間子崩壊 / 素粒子実験 / CP非保存 / Electromagnetic calorimeter / Experimental Particle Physics / 検出器 / カロリメーター / TREK experiment / Stomped kaon beam / E246 experiment / CP violation / Time reversal Invariance violation / Kaon decay / J-PARC(2) / アクティブ・ポラリメーター / E06実験 / TREK実験 / ミュオン横偏極 / Kμ3崩壊 / TREX実験 / 静止K中間子ビーム / E246実験 / 時間反転不変性の破れ / Silicon-strip detector / Cherenkov counter / high intensity beam / K meson / 次世代実験装置 / トリガーボード / チェレンコフ検出器 / チェレンコフカウンタ / シリコンストリップ検出器 / チェレンコフカウンター / 大強度ビーム / active degrader / particle identification / hermetic detector / K-meson / アクティブ減速材 / PbWO_4 / 粒子識別 / 密閉型検出器 / High intensity kaon beam / Gamma-ray detection / Pulse shape analysis / K meson decay / フォトン・ベトー / K中間子稀崩壊 / 大強度K中間子ビーム / ガンマ線測定 / 波形解析 / 対称性の破れ / 国際研究者交流 / 中性K中間子 / 標準理論を超える物理 / 波形記録 / 荷電レプトン・フレーバ非保存 / 標準理論 / CLFV / パイオン / 荷電ヒッグス / レプトン普遍性 / 精密測定 / 素粒子(実験) / J-Parc / CPの破れ / ビームインラ / J - Parc / K 中聞子 / CP の破れ / ビームライン / CsI電磁カロリメータ / 大強度陽子加速器 / 光子検出器 / 国際研究者交流(米加露) / 小林・益川理論 / アエロジェル / ガンマ線検出器 / エアロジェル / 小林・益川 Less
  • Research Projects

    (11 results)
  • Research Products

    (17 results)
  • Co-Researchers

    (34 People)
  •  Search for neutral and light new-particles through Kaon decaysPrincipal Investigator

    • Principal Investigator
      Komatsubara Takeshi
    • Project Period (FY)
      2017 – 2019
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      High Energy Accelerator Research Organization
  •  Search for New Physics Beyond the Standard Model with Rare Neutral Kaon Decays

    • Principal Investigator
      YAMANAKA TAKU
    • Project Period (FY)
      2011 – 2015
    • Research Category
      Grant-in-Aid for Scientific Research (S)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      Osaka University
  •  A Precision Measurement of the Branching Ratio in Pion Decay and Search for the Physics beyond the Standard Model

    • Principal Investigator
      AOKI Masaharu
    • Project Period (FY)
      2009 – 2012
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      Osaka University
  •  Search for flavor mixing and new physics with K_L→π^0νν^^- decay

    • Principal Investigator
      YAMANAKA Taku
    • Project Period (FY)
      2006 – 2011
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      Osaka University
  •  Development of tungsten wire-scintillating fiber sampling calorimeter

    • Principal Investigator
      LIM Gei Youb
    • Project Period (FY)
      2006 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      High Energy Accelerator Research Organization
  •  Stopped K+ Physics at J-PARC

    • Principal Investigator
      IMAZATO Jun
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Particle/Nuclear/Cosmic ray/Astro physics
    • Research Institution
      High Energy Accelerator Research Organization
  •  荷電及び中性K中間子の稀崩壊の精密測定

    • Principal Investigator
      SUGIMOTO Shojiro
    • Project Period (FY)
      2002 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      High Energy Accelerator Research Organization
      高エネルギー加速器研究機構
  •  R&D on detector components for rare K+ decay experiment in high intensity beam environment

    • Principal Investigator
      SUGIMOTO Shojiro
    • Project Period (FY)
      2000 – 2003
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      素粒子・核・宇宙線
    • Research Institution
      High Energy Accelerator Research Organization (KEK)
  •  大強度ビームを用いた荷電K中間子の稀な崩壊過程の研究Principal Investigator

    • Principal Investigator
      小松原 健
    • Project Period (FY)
      1998 – 1999
    • Research Category
      Grant-in-Aid for Encouragement of Young Scientists (A)
    • Research Field
      素粒子・核・宇宙線
    • Research Institution
      高エネルギー加速器研究機構
  •  Detector R&D for stopped KィイD1+ィエD1 decay experiment

    • Principal Investigator
      SUGIMOTO Shojiro
    • Project Period (FY)
      1997 – 1999
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      素粒子・核・宇宙線
    • Research Institution
      High Energy Accelerator Research Organization
  •  Fast pulse shape analysis for rare kaon decay experiments

    • Principal Investigator
      SUGIMOTO Shojiro
    • Project Period (FY)
      1993 – 1995
    • Research Category
      Grant-in-Aid for General Scientific Research (B)
    • Research Field
      素粒子・核・宇宙線
    • Research Institution
      University of Tokyo

All 2017 2012 2011 2010 2009 2008 2007 2006 Other

All Journal Article Presentation

  • [Journal Article] Measurement of K^0_L flux at the J-PARC Neutral-Kaon Beam Line2012

    • Author(s)
      K. Shiomi, T. K. Komatsubara, H. Nanjo, Y. Tajima, T. Yamanaka, et al.
    • Journal Title

      Nucl Inst. Meth. A

      Volume: 664 Pages: 264-271

    • URL

      http://dx.doi.org/doi:10.1016/j.nima.2011.11.010

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Experiments with K-meson Decays2012

    • Author(s)
      T.K. Komatsubara
    • Journal Title

      Prog. Part. Nucl. Phys.

      Volume: 67 Issue: 4 Pages: 995-1018

    • DOI

      10.1016/j.ppnp.2012.04.001

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23224007
  • [Journal Article] Development of a Neutral Beam Profile Monitor2011

    • Author(s)
      G. Takahashi, T. K. Komatsubara, H. Nanjo, Y. Tajima, T. Yamanaka, et al.
    • Journal Title

      JJAP

      Volume: 50 Pages: 36701-36701

    • NAID

      40018777938

    • URL

      http://dx.doi.org/doi:10.1143/JJAP.50.036701

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Study of the K^0_L→π^0π^0νν^^- decay2011

    • Author(s)
      R. Ogata, T. K. Komatsubara, T. Matsumura, H. Nanjo, Y. Tajima, T. Yamanaka, et al. (E391a Collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 84 Pages: 52009-52009

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevD.84.052009

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Experimental Study of the Decay K_L→π^0νν^^-2010

    • Author(s)
      J. K. Ahn, T. K. Komatsubara, H. Nanjo, S. Suzuki, Y. Tajima, T. Yamanaka, H. Morii, et al.
    • Journal Title

      Phys. Rev. D

      Volume: 81 Pages: 72004-72004

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevD.81.072004

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Search for a Light Pseudoscalar Particle in the Decay K^0_L→π^0π^0X2009

    • Author(s)
      Y. C. Tung, T. K. Komatsubara, H. Nanjo, S. Suzuki, Y. Tajima, T. Yamanaka, et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 102 Pages: 51802-51802

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevLett.102.051802

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Barrel Photon Detector of the KEK K_L→π^0νν^^- Experiment2008

    • Author(s)
      Y. Tajima, T. K. Komatsubara, T. Yamanaka
    • Journal Title

      Nucl. Inst. Meth. A

      Volume: 592 Pages: 261-272

    • URL

      http://dx.doi.org/doi:10.1016/j.nima.2008.04.080

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] Search for the Decay K_L→π^0νν^^-2008

    • Author(s)
      J. K. Ahn, T. Sumida, T. K. Komatsubara, H. Nanjo, S. Suzuki, Y. Tajima, T. Yamanaka, et al.
    • Journal Title

      Phys. Rev. Lett.

      Volume: 100 Pages: 201802-201802

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevLett.100.201802

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] B, D and K decays2008

    • Author(s)
      G. Buchalla, T. K. Komatsubara, F. Muheim, L. Silvestrini, et al.
    • Journal Title

      Eur. Phys. J. C

      Volume: 57 Pages: 309-492

    • URL

      http://dx.doi.org/doi:10.1140/epjc/s10052-008-0716-1

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] First Search for K_L→π^0π^0νν^^-2007

    • Author(s)
      J. Nix, T. K. Komatsubara, S. Suzuki, Y. Tajima, T. Yamanaka, et al.
    • Journal Title

      Phys. Rev. D

      Volume: 76

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevD.76.011101

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Journal Article] New Limit on the K_L→π^0νν^^- Decay Rate2006

    • Author(s)
      J. K. Ahn, T. Inagaki, T. K. Komatsubara, G. Y. Lim, N. Sasao, H. Watanabe, M. Yamaga, T. Yamanaka, et al.
    • Journal Title

      Phys. Rev. D

      Volume: 74

    • URL

      http://dx.doi.org/doi:10.1103/PhysRevD.74.051105

    • Peer Reviewed
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Presentation] K中間子の稀な崩壊による中性で軽い新粒子の探索2017

    • Author(s)
      小松原健
    • Organizer
      日本物理学会2017年秋季大会(宇都宮大学峰キャンパス(栃木県宇都宮市))
    • Data Source
      KAKENHI-PROJECT-17K05479
  • [Presentation] Experiments with K-Meson Decays2012

    • Author(s)
      Takeshi Komatsubara
    • Organizer
      KEK Flavor Factory Workshop (KEK-FF2012)
    • Place of Presentation
      KEK, Japan
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Presentation] Experiments with K-Meson Decays2012

    • Author(s)
      Takeshi Komatsubara
    • Organizer
      KEK Flavor Factory Workshop (KEK-FF2012)
    • Place of Presentation
      KEK, Japan
    • Data Source
      KAKENHI-PROJECT-23224007
  • [Presentation] Kaons - Recent Results and Future Plans2009

    • Author(s)
      小松原健
    • Organizer
      LP09 - XXIV INTERNATIONAL SYMPOSIUM ON LEPTON PHOTON INTERACTIONS AT HIGH ENERGIES
    • Place of Presentation
      Hamburg, Germany
    • Year and Date
      2009-08-21
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Presentation] Kaons-Recent Results and Future Plans2009

    • Author(s)
      Takeshi Komatsubara
    • Organizer
      Lepton Photon 2009-XXIV International Symposium on Lepton Photon Interactions at High Energies
    • Place of Presentation
      Hamburg, Germany
    • Data Source
      KAKENHI-PLANNED-18071006
  • [Presentation] Kaon Rare Decay Physics

    • Author(s)
      Takeshi K. Komatsubara
    • Organizer
      Future Direction of Proton Intensity Frontier
    • Place of Presentation
      Tokai, Japan
    • Data Source
      KAKENHI-PROJECT-23224007
  • 1.  LIM Geiyoub (90332113)
    # of Collaborated Projects: 5 results
    # of Collaborated Products: 3 results
  • 2.  SUGIMOTO Shojiro (20044753)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 3.  NOMURA Tadashi (10283582)
    # of Collaborated Projects: 4 results
    # of Collaborated Products: 0 results
  • 4.  KOBAYASHI Masaaki (40013388)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 5.  SHINKAWA Takao (70171064)
    # of Collaborated Projects: 3 results
    # of Collaborated Products: 0 results
  • 6.  SASAO Noboru (10115850)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 7.  YAMANAKA Taku (20243157)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 9 results
  • 8.  NANJO Hajime (40419445)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 9.  TAJIMA Yasuhisa (50311577)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 8 results
  • 10.  SUZUKI Shiro (50089851)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 4 results
  • 11.  MATSUMURA Toru (00545957)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 12.  INAGAKI Takao (60044757)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 1 results
  • 13.  AOKI Masaharu (80290849)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 14.  IGARASHI Youichi (50311121)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 15.  UKAI Kumataro (40013411)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 16.  TAMAGAWA Yoichi (40236732)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 17.  佐藤 任弘 (10013418)
    # of Collaborated Projects: 2 results
    # of Collaborated Products: 0 results
  • 18.  YOSHIDA Kouji (80241727)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 19.  WATANABE Hiroaki (00415043)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 1 results
  • 20.  TOGAWA Manabu (50455359)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 21.  YOSHIDA Makoto (70379303)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 22.  NOMACHI Masaharu (90208299)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 23.  IMAZATO Jun (40107686)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 24.  SAWADA Shinyo (70311123)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 25.  SHIMIZU Suguru (60294146)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 26.  山鹿 光裕 (50379301)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 27.  小俣 和夫 (00092172)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 28.  浅野 侑三 (80100808)
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 29.  NUMAO Toshio
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 30.  ITOU Shintaro
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 31.  ITOU Naosuke
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 32.  YAMADA Kaoru
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 33.  BRYMAN Douglas
    # of Collaborated Projects: 1 results
    # of Collaborated Products: 0 results
  • 34.  南條 創
    # of Collaborated Projects: 0 results
    # of Collaborated Products: 6 results

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