Charmed particle analysis with one million neutrino interactions

• Project/Area Number: 19540281
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Nagoya University
• Principal Investigator: SATO Osamu Nagoya University, 大学院・理学研究科, 特任助教 (20377964)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
• Keywords: チャーム粒子生成 / チャームペンタクォーク / 素粒子実験 / ニュートリノ / チャーム粒子 / ハイパー核

Research Abstract

The CHORUS experiment stored one million neutrino interactions in nuclear emulsion target. While the past analysis for neutrino oscillation and charm analysis such for short life time particle detection was just based only 0.2 million events. The limitation of the analyzed event comes from limitation of scanning power and inefficiency due to target tracker prediction accuracy tail.
Then the aim of this study is locating of 1 million neutrino events by faster scanning machine and deal about 20,000 charmed particle associated events.
The R&D of improving track finding efficiency and reducing background tracks in the large area scanning like level of 10cmx10cm was done.
And the parameters of track goodness are tuned to keep signal background level and track finding efficiency and the track pick up for event location was done.
All neutrino event location in the CHORUS detector and neutrino events with charmed particle will be followed.

Research Products

• [Journal Article] The analysis of interface emulsion detector for the OPERA experiment in JAPAN Scanning facility (2010)
  • Author(s): T. Fukuda K. Kodama M. Komatsu S. Miyamoto K. Morishima T. Nakano T. Omura Y. Sakatani, O. Sato
  • Journal Title: JINST 5 Pages: 4009-4009
  • Peer Reviewed
• [Journal Article] The analysis of interface emulsion detector for the OPERA experiment in JAPAN Scanning facility (2010)
  • Author(s): T.Fukuda, O.Sato, 他計9名
  • Journal Title: Jornal of Instrumentation 5 Pages: 4009-4009
  • Peer Reviewed
• [Journal Article] The Detection of neutrino interactions in the emulsion / lead target of the OPERA experiment. OPERA Collaboration (2009)
  • Author(s): N.Agafonova, et al
  • Journal Title: JINST 4 Pages: 6020-6020
  • Peer Reviewed
• [Journal Article] The OPERA experiment in the CERN to Gran Sasso neutrino beam. OPERA Collaboration (2009)
  • Author(s): R.Acquafredda, et al
  • Journal Title: JINST 4 Pages: 4018-4018
  • Peer Reviewed
• [Journal Article] The Detection of neutrino interactions in the emulsion/lead target of the OPERA experiment. (2009)
  • Author(s): OPERA Collaboration(N.Agafonova, et al)
  • Journal Title: Jornal of Instrumentation 4 Pages: 6020-6020
  • Peer Reviewed
• [Journal Article] The OPERA experiment in the CERN to Gran Sasso neutrino beam. (2009)
  • Author(s): OPERA Collaboration(R.Acquafredda, et al)
  • Journal Title: Jornal of Instrumentation 4 Pages: 4018-4018
  • Peer Reviewed
• [Journal Article] Leading order analysis of neutrino induced dimuon events in the CHORUS experiment. CHORUS Collaboration (2008)
  • Author(s): A.Kayis-Topaksu, et al
  • Journal Title: Nucl. Phys. B798 Pages: 1-16
  • Peer Reviewed
• [Journal Article] Emulsion sheet doublets as interface trackers for the OPERA experiment. OPERA Collaboration (2008)
  • Author(s): A.Anokhina, et al
  • Journal Title: JINST 3 Pages: 7005-7005
  • Peer Reviewed
• [Journal Article] Final results on nu(mu)-> nu(tau) oscillation from the CHORUS experiment. CHORUS Collaboration (2008)
  • Author(s): E.Eskut, et al
  • Journal Title: Nucl. Phys. B793 Pages: 326-333
  • Peer Reviewed
• [Journal Article] Emulsion sheet doublets as interface trackers for the OPERA experiment. (2008)
  • Author(s): OPERA Collaboration (A. Anokhina, et al.)
  • Journal Title: Jornal of Instrumentation 3
  • Peer Reviewed
• [Journal Article] Leading order analysis of neutrino induced dimuon events in the CHORUS experiment. (2008)
  • Author(s): CHORUS Collaboration (A. Kayis-Topaksu, et al.)
  • Journal Title: Nuclear Physics B798 Pages: 1-16
  • Peer Reviewed
• [Journal Article] Final results on nu (mu) →nu (tau) oscillation from the CHORUS experiment. (2008)
  • Author(s): CHORUS Collaboration (E. Eskut, et. al.)
  • Journal Title: Nucl. Phys. B793 Pages: 326-343
  • Peer Reviewed
• [Journal Article] Associated Charm Production in Neutrino-Nucleus Interactions. CHORUS Collaboration (2007)
  • Author(s): A.Kayis-Topaksu, et al
  • Journal Title: Eur. Phys. J C52 Pages: 543-552
  • Peer Reviewed
• [Journal Article] Charged Particle Multiplicities in Charged-Current Neutrino and Anti-Neutrino Nucleus Interactions. CHORUS Collaboration (2007)
  • Author(s): A.Kayis-Topaksu, et al
  • Journal Title: Eur. Phys. J. C51 Pages: 775-785
  • Peer Reviewed
• [Journal Article] Associated Charm Production in Neutrino-Nucleus Interactions. (2007)
  • Author(s): CHORUS Collaboration (A. Kayis-Topaksu, et. al.)
  • Journal Title: Eur. Phys. J. C52 Pages: 543-552
  • Peer Reviewed
• [Journal Article] Charged Particle Multiplicities in Charged-Current Neutrino and Anti-Neutrino Nucleus Interactions. (2007)
  • Author(s): CHORUS Collaboration (A. Kayis-Topaksu, et. al.)
  • Journal Title: Eur. Phys. J. C51 Pages: 775-785
  • Peer Reviewed
• [Presentation] ニュートリノ振動実験OPERAのタウニュートリノ反応探索 (2010)
  • Author(s): 佐藤修
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-22
• [Presentation] ニュートリノ振動実験OPERA現状報告 (2009)
  • Author(s): 佐藤修
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-29
• [Presentation] ニュートリノ振動実験OPERA現状報告 (2007)
  • Author(s): 佐藤修
  • Organizer: 日本物理学会
  • Place of Presentation: 北海道大学
  • Year and Date: 2007-09-22
• [Remarks] 名古屋大学理学研究科・素粒子宇宙物理系基本粒子研究室(F研)ホームページ
  • URL: http://flab.phys.nagoya-u.ac.jp