Takeshi K. Komatsubara
- Talks/Articles/Reviews/Publications/Workshops

• K稀崩壊の物理 (in Japanese),
  研究会『J-PARC : Proton Intensity Frontier の将来を考えるー加速器編』,
  Tokai, Japan, December 20, 2012

• Experiments with K-Meson Decays,
  KEK Flavor Factory Workshop (KEK-FF2012),
  KEK-Tsukuba, Japan, March 08-10, 2012

• Experimental study of the rare neutral-kaon decays at J-PARC,
  US-Japan Workshop,
  KEK-Tsukuba, Japan, December 20-21, 2011

• Kの将来計画 (in Japanese),
  高エネルギー物理学将来計画検討小委員会タウンミーティング 『J-PARCで展開する高エネルギー物理学の将来展望』,
  Tokai, Japan, August 09, 2011

• "J-PARC Particle physics experiments (other than T2K)"
  IAC meeting of J-PARC (Tokai, Japan, March 15, 2010)

• "Kaons - Recent Results and Future Plans"
  LEPTON PHOTON 2009 (Hamburg, Germany, August 17-22, 2009)

• "Hints for new physics in Kaon Decays and new experiments at J-PARC"
  Workshop on Hints for new physics in flavor decays (KEK, March 20-21, 2009)

• "Final results from BNL-E949 on the Rare Decay K+ -> pi+nunubar"
  KEK Physics Seminar (September 16, 2008)

• "NP08 WG Summary: Kaon Rare Decay Experiments"
  The 4th International Workshop on Nuclear and Particle Physics at J-PARC (NP08), (Mito, March 05-07, 2008)

• "KL稀崩壊実験とビームライン" (in Japanese)
  RCNP workshop 「J-PARCハドロン実験施設のビームライン設備拡充に向けて」, (阪大RCNP, November 11-12, 2007)

• "Status and prospects of Kaon Experiments"
  at the Final Plenary meeting of "FLAVOUR IN THE ERA OF THE LHC", a Workshop on the interplay of flavour and collider physics
  (CERN, Geneve, March 26-28, 2007)

• "Physics and prospects of the KL->pi0nn Experiment" (in Japanese)
  at the 2007 workshop of Grant-in-Aid for Scientific Research in Priority Areas: " New Developments of Flavor Physics" (Kansai Seminar House, March 16-17, 2007)

• "Future Kaon Program at J-PARC"
  at the first meeting of "FLAVOUR IN THE ERA OF THE LHC", a Workshop on the interplay of flavour and collider physics
  (CERN, Geneve, November 7-10, 2005)

• "J-PARC: new frontiers in Hadron Physics"
  at the EINN05 Workshop on "Physics and Technology Frontiers of Facilities for Hadron Physics"
  (Milos, Greece, September 19-20, 2005)

• "Recent results from BNL-E949 on the Rare Decays K+ -> pi+ gamma gamma, -> pi+ gamma"
  at Kaon 2005 International Workshop (Northwestern Univ., Illinois, June 13-17, 2005)

• "K+ Physics at J-PARC"
  at K-RARE Meeting: K-Rare Decays, Experimental Challenges in K -> pi nu nubar measurements
  (INFN-Frascati, May 26-27, 2005)

• "Detector R&D for KEK-PS and J-PARC particle experiments" (in Japanese)
  at a meeting on the Detector R&D at KEK-IPNS (March 01, 2005)

• "Overview of J-PARC for the Phase-2" (in Japanese)
  at an open session of the KEK-IPNS Research PLanning Committee (January 28, 2005)

• "Nuclear and Particle Physics at the J-PARC Hadron Facility" (in Japanese)
  at the KEK Accelerator-Laboratory meeting (November 30, 2004)

• "Rare Kaon Decays - a review of results, 2004"
  at FPCP2004: Flavor Physics and CP Violation 2004 (Daegu, Korea, October 4-9, 2004)

• "Kaon Decay Experiments"
  (and co-convening the "Kaon Rare Decay" session)
  at the NP04 workshop for J-PARC (Tokai, August 2-4, 2004)

• "Future Kaon Program at KEK/J-PARC"
  at DAFNE 2004: Physics at meson factories (INFN-Frascati, June 7-11, 2004)

• "Kaon Decay Experiments at J-PARC"
  at KEK-PS External Review 2004 (KEK, June 7-8, 2004)

• "Current and future kaon programs at KEK/J-PARC"
  at Workshop on Future Kaon Experiments at the AGS (BNL, May 13, 2004), held in conjunction with the 2004 RHIC & AGS Annual Users' Meeting (May 10-14, 2004)

• "First Results from BNL-E949 on the Rare Decay K+ -> pi+ nu nubar"
  KEK Physics Seminar (April 7, 2004)

• Talk at " Workshop on Computing System at J-PARC" (KEK, March 24, 2004), in Japanese

• "Experimental Kaon Rare-decay Physics" (20min.)
  at the 2nd workshop of Grant-in-Aid for Scientific Research in Priority Areas: "Mass Origin and Supersymmetry Physics" (Epochal Tsukuba, March 8-9, 2004)

• "Rare Kaon Decays "
  in the series of K2K SciBar Summer Seminar (KEK, July 3, 2003)

• "L-04: Letter of Intent for Study of Rare Decay K+ -> pi+ nu nubar with Stopped Kaon Beam at J-PARC"
  at the 2nd NPFC meeting for J-PARC (KEK, June 26-28, 2003)

• "Search for New Physics through the rare kaon decay K+ -> pi+ nu nubar "
  at the 1st workshop of Grant-in-Aid for Scientific Research in Priority Areas: "Mass Origin and Supersymmetry Physics" (Univ. of Tsukuba, March 4-5, 2003)

• Talks at NP02: International Workshop on Nuclear and Particle Physics at 50-GeV PS (Kyoto, Sep 27-29, 2002)

• "Catch a Shooting Star!" Experiments: Rare Kaon-Decay Experiments (in Japanese)
  at TEA02 : Theoretical-Experimental-Astromonimal Particle Physics (YITP-Kyoto, August 21-23, 2002)

• "Latest Results on the Rare Decay K+ -> pi+ nu nubar from the BNL E787 Experiment" (in Japanese, ps file)
  at the 57th Annual Meeting of the Physical Society of Japan (Special Talk, March 24, 2002)

• "Waveform digitizers in Kaon Rare-Decay Experiments" (in Japanese)
  at Electronics-Online Users Workshop 2001 (KEK, October 4-5, 2001)

• Results from the Rare Kaon-Decay Experiment E787 at BNL-AGS (in Japanese, ps file):
  High Energy News (Japan Association of High Energy Physicists) 20(4), 179 (Nov/Dec 2001)

• The 5th KEK Topical Conference -Frontiers in Flavor Physics- (in Japanese, ps file):
  High Energy News (Japan Association of High Energy Physicists) 20(4), 198 (Nov/Dec 2001)

• Rare Kaon Decays - a review of results, hep-ex/0501016 :
  in the Proceedings of FPCP2004 (Daegu, Korea, October 4-9, 2004)

• Future Kaon Program at KEK/J-PARC, hep-ex/0409017 :
  in the Proceedings of DAFNE 2004 (INFN-Frascati, June 7-11, 2004)

• 「K中間子 稀 崩壊 実験」:
  素粒子論研究 107巻3号 (2003年6月) C3-C6

• Kaon Rare Decays, hep-ex/0112016 :
  in the Proceedings of the XXI Physics in Collision conference (Seoul, June 28-30, 2001)

• E391a Collaboration, Phys. Rev. D 84, 052009 (2011) (7 pages):
  Study of the KL -> pi0pi0nunubar decay

• Goh Takahashi et al., Jpn. J. Appl. Phys. 50 (2011) 036701 (6 pages):
  Development of a Neutral Beam Profile Monitor

• E391a Collaboration, Phys. Rev. D 83, 031101(R) (2011) (5 pages):
  Search for the decay KL -> 3gamma

• E787 Collaboration, Phys. Rev. D 81, 0092001 (2010) (10 pages):
  Measurement of he K+ -> pi0 mu+ nu_mu gamma branching ratio

• E391a Collaboration, Phys. Rev. D 81, 072004 (2010) (23 pages):
  the full and final paper on KL -> pi0 nu nubar from the KEK-E391a experiment

• E949 Collaboration, Phys. Rev. D 79, 092004 (2009) (27 pages):
  the full and final paper on K+ -> pi+ nu nubar from the BNL-E949 experiment

• E391a Collaboration, Phys. Rev. Lett. 102, 051802 (2009) (5 pages):
  Search for a light pseudoscalar particle in the decat KL -> pi0 pi0 X

• E949 Collaboration, Phys. Rev. Lett. 101, 191802 (2008) (4 pages):
  New Measurement of the K+ -> pi+ nu nubar Branching Ratio

• Y. Tajima et al. Nuclear Instruments and Methods in Phys. Res. A592, 261-272 (2008):
  Barrel photon detector of the KEK KL->pi0nunubar experiment

• E391a Collaboration, Phys. Rev. Lett. 100, 201802 (2008) (5 pages):
  Search for the Decay KL -> pi0 nu nubar from E391a Run-2 data

• S. Adler et al., Phys. Rev. D 77, 052003 (2008) (40 pages):
  the full paper on K+ -> pi+ nu nubar from the BNL-E949 experiment

• E391a Collaboration, Phys. Rev. D 76, 011101(R) (2007) (5 pages):
  First search for KL -> pi0 pi0 nu nubar

• E391a Collaboration, Phys. Rev. D 74, 051105(R) (2006) (5 pages):
  New limit on the KL -> pi0 nu nubar decay rate

• Y.Tamagawa et al., Nucl. Instrum. Methods Phys. Res. A 562 (2006) 120-126:
  Performance of connected GSO bars

• E949 Collaboration, Phys. Rev. D 72, 091102(R) (2005) (4 pages):
  Upper Limit on the Branching Ratio for the Decay $\pi^0 \to \nu \bar\nu$

• E949 Collaboration, Phys. Lett. B 623 (2005) 192-199:
  Search for the decay K+ to pi+ gamma gamma in the pi+ momentum region P>213 MeV/c

• M.Doroshenko et al., Nucl. Instrum. Methods Phys. Res. A 545 (2005) 278-295:
  Undoped-CsI Calorimeter for the K^0_L -> pi^0 nu nubar Experiment at KEK-PS

• E787 Collaboration, Phys.Rev.D 70(2004)037102, 4 pages (published 25 Aug, print issue of 1 August 2004):
  Further search for the decay K+ -> pi+ nu nubar in the momentum region P_pi < 195 MeV/c
  

• E949 Collaboration, Phys.Rev.Lett 93(2004)031801, 4 pages (published 12 July, print issue of 16 July 2004):
  Improved Measurement of the K+ -> pi+ nu nubar Branching Ratio

• T.Yoshioka, M.Nomachi and et al., IEEE Transactions on Nuclear Science 51(2004)334-339 (see SPIRES):
  Upgrade of the Level-0 Trigger System for BNL-E949.

• FRONTIERS IN FLAVOR PHYSICS, Proceeings of the Fifth KEK Topical Conference on Frontiers in Flavor Physics
  KEK, Tsukuba Japan, 20-22 November 2001
  Edited by S.Hashimoto and T.K.Komatsubara
  Nuclear Physics B (Proc. Suppl) 111 (2002) NOVEMBER 2002.

• E787 Collaboration, Phy.Lett. B537/3-4, pp 211-216 (accepted 6 May, printed issue of June 2002):
  Search for K+ -> pi+ nu nubar in P < 195 MeV/c ("below Kpi2")

• M. Kobayashi et al., Nucl. Instr. and Meth. A 484 (2002) 140 (accepted 28 August 2001, printed issue of 21 May 2002):
  A beam test of PbWO_4 Cherenkov radiators

• E787 Collaboration, Phys.Rev D65, 052009 (2002)(7 pages) (published 14 Feb, print issue of 1 March 2002):
  Test of Angular Momentum Conservation in particle physics

• E787 Collaboration, Phys.Rev.Lett. 88, 041803 (2002) (published 11 Jan, print issue of 28 Jan, featured in the cover page):
  Final results on the K+ -> pi+ nu nubar decay

• Mini-Workshop on Kaon Experiments and Detectors
  (Nov 5-7, 2004, Mikata, Fukui, Japan)

• Mini-Workshop on Beamlines for Kaon Decay Experiments at J-PARC (in Japanese)
  (Dec 13, 2003, KEK, Japan)

• KEK-RCNP International School and mini-Workshop for
  Scintillating Crystals and Their Applications in Particle and Nuclear Physics
  (Nov 17-18, 2003, KEK, Japan):
  working on as a secretary; no presentation of my own.