KOMATSUBARA Takeshi 小松原健

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Komatsubara Takeshi 小松原健

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Researcher Number	30242168
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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

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

KOMATSUBARA Takeshi 小松原 健

Komatsubara Takeshi 小松原 健

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Search for neutral and light new-particles through Kaon decaysPrincipal Investigator

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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

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

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[Journal Article] Experiments with K-meson Decays2012

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[Journal Article] Development of a Neutral Beam Profile Monitor2011

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[Journal Article] Study of the K^0_L→π^0π^0νν^^- decay2011

Author(s)

KOMATSUBARA Takeshi 小松原健

Komatsubara Takeshi 小松原健