Precise measurements of neutral K meson and K/πratio with LHCf

• Project/Area Number: 23740183
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Nagoya University
• Principal Investigator: MITSUKA Gaku 名古屋大学, 太陽地球環境研究所, COE研究員 (00566804)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: LHC / 大気ニュートリノ / 暗黒物質 / 高エネルギー宇宙線 / ハドロン相互作用 / ニュートリノ / 国際研究者交流 / イタリア / スイス

Research Abstract

Forward π0and K0sproduced in the proton-proton collisions at the √s = 7 TeV at the LHC were observed. The transverse momentum distribution of π0is derived by the observed data. Reconstructed invariant mass of 4γis confirmed to be consistent with the rest mass of K0s.

Research Products

• [Journal Article] Measurement of gamma gamma* -> pi0 transition form factor at Belle (2012)
  • Author(s): S. Uehara, Y.Watanabe, H. Nakazawa et al.
  • Journal Title: Phys. Rev. D Volume: 86 Issue: 9 Pages: 92007-92007
  • DOI: 10.1103/physrevd.86.092001
  • Peer Reviewed
• [Journal Article] Measurement of zero degree inclusive photon energy spectra for \sqrt{s}=900GeV proton-proton collisions at LHC (2012)
  • Author(s): The LHCf collaboration (O.Adriani et al.)
  • Journal Title: Physics Letter Volume: B715 Issue: 4-5 Pages: 298-303
  • DOI: 10.1016/j.physletb.2012.07.065
  • Peer Reviewed
• [Journal Article] Recent results from the LHCf experiment (2012)
  • Author(s): Gaku Mitsuka
  • Journal Title: Acta Physica Polonica B Volume: 6 Pages: 3-3
  • Peer Reviewed
• [Journal Article] Luminosity Determination in √s=7TeV Proton Collision Using the LHCf Front Counter at LHC (2012)
  • Author(s): K.Taki, 他
  • Journal Title: JINST Volume: 7 Issue: 01 Pages: 1-8
  • DOI: 10.1088/1748-0221/7/01/t01003
  • Peer Reviewed
• [Journal Article] Calibration of LHCf calorimeters for photon measurement by CERN SPS test beam (2012)
  • Author(s): The LHCf collaboration (T. Mase et al.,)
  • Journal Title: Nuclear Instrument & Methods Volume: A671 Pages: 129-136
  • DOI: 10.1016/j.nima.2011.12.096
  • Peer Reviewed
• [Journal Article] Measurement of zero degree single photon energy spectra for √s=7TeV proton-proton collisions at LHC (2011)
  • Author(s): O.Adriani
  • Journal Title: Phys. Lett. B Volume: 703 Issue: 2 Pages: 128-134
  • DOI: 10.1016/j.physletb.2011.07.077
  • Peer Reviewed
• [Presentation] LHCf results in p-Pb collisions (2013)
  • Author(s): Gaku Mitsuka
  • Organizer: Workshop on proton-nucleus collisions at the LHC
  • Place of Presentation: イタリア、トレント
  • Invited
• [Presentation] LHCf実験における7TeV陽子衝突データを用いたK0メソン解析 (2013)
  • Author(s): 三塚 岳
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島
• [Presentation] Cosmic ray physics and recent results from LHCf (2012)
  • Author(s): G. Mitsuka
  • Organizer: 17th International Seminar on High Energy Physics
  • Place of Presentation: ヤロスラヴリ(ロシア)
  • Year and Date: 2012-06-06
• [Presentation] Recent results from LHCf (2012)
  • Author(s): G. Mitsuka
  • Organizer: International Symposium on the Recent Progress of Ultra-high Energy Cosmic Ray Observation
  • Place of Presentation: CERN(スイス)
  • Year and Date: 2012-02-14
• [Presentation] Recent Results from the LHCf experiment (2012)
  • Author(s): Gaku Mitsuka
  • Organizer: QUARKS2012
  • Place of Presentation: ロシア、ヤロスラヴリ
  • Invited
• [Presentation] Recent results from the LHCf experiment (2012)
  • Author(s): Gaku Mitsuka
  • Organizer: ISMD2012
  • Place of Presentation: ポーランド、キェルチェ
• [Presentation] LHCf実験における7TeV陽子衝突データを用いた中性メソン解析(3) (2012)
  • Author(s): 三塚 岳
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 京都
• [Presentation] Recent results from LHCf (2012)
  • Author(s): Gaku Mitsuka
  • Organizer: International Symposium on the Recent Progress of Ultra-high Energy Cosmic Ray Observation (UHECR 2012)(招待講演)
  • Place of Presentation: CERN(スイス)
• [Presentation] LHCf実験における7TeV陽子衝突データを用いた中性メソン解析(2) (2012)
  • Author(s): 三塚岳
  • Organizer: 日本物理学会
  • Place of Presentation: 関西学院大学
• [Presentation] High Energy Hadronic Interactions and Cosmic Ray Physics (2011)
  • Author(s): G. Mitsuka
  • Organizer: 14th Workshop on Elastic and Diffractive Scattering
  • Place of Presentation: クイニョン(ベトナム)
  • Year and Date: 2011-12-20
• [Presentation] Inclusive photon energy spectra at zero degree of the LHC 7TeV proton-proton collisions by the LHCf experiment (2011)
  • Author(s): Gaku Mitsuka
  • Organizer: 32nd international Cosmic Ray Conference
  • Place of Presentation: 北京
• [Presentation] LHCf results and their relevance for the HECR physics (2011)
  • Author(s): Gaku Mitsuka
  • Organizer: 3rd Galileo - Xu Guangqi meeting
  • Place of Presentation: 北京
• [Presentation] High Energy Hadronic Interactions and Cosmic Ray Physics (2011)
  • Author(s): Gaku Mitsuka
  • Organizer: 14th Workshop on Elastic and Diffractive Scattering (EDS Blois Workshop)(招待講演)
  • Place of Presentation: クイニョン(ベトナム)
• [Presentation] LHCf実験における7TeV陽子衝突データを用いた中性メソン解析 (2011)
  • Author(s): 三塚岳
  • Organizer: 日本物理学会
  • Place of Presentation: 弘前大学
• [Book] CERN Courier (2012)
  • Author(s): T. Sako, G. Mitsuka
  • Publisher: CERN
• [Book] LHCf: bringing cosmic collisions down to Earth (2012)
  • Author(s): Takashi Sako
  • Total Pages: 3
  • Publisher: CERN COURIER