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A comprehensive study of cosmic ray air showers and hadronic interactions by very forward measurement at LHC

Research Project

Project/Area Number 23244050
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionNagoya University

Principal Investigator

ITOW Yoshitaka  名古屋大学, 太陽地球環境研究所, 教授 (50272521)

Co-Investigator(Kenkyū-buntansha) MASUDA Kimiaki  名古屋大学, 太陽地球環境研究所, 准教授 (40173744)
SAKO Takashi  名古屋大学, 太陽地球環境研究所, 助教 (90324368)
Research Collaborator MENJO Hiroaki  名古屋大学, 理学研究科, 特任助教
MITSUKA Gaku  名古屋大学, 太陽地球環境研究所, 特任助教
Project Period (FY) 2011-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥37,960,000 (Direct Cost: ¥29,200,000、Indirect Cost: ¥8,760,000)
Fiscal Year 2013: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Fiscal Year 2012: ¥10,530,000 (Direct Cost: ¥8,100,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2011: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Keywords宇宙線 / 加速器実験 / 国際協力 / 素粒子実験 / 実験核物理 / LHCf実験 / CERN / LHC / 国際研究者交流 / 高エネルギー物理学 / ハドロン物理
Outline of Final Research Achievements

We have performed the LHCf experiment for measurements for very forward particle productions, which are relevant for understanding of air shower development and its implication for high energy cosmic ray measurements, by using small dedicated detectors at LHC. The results for very forward energy spectra of gamma rays, neutral pions and neutrons from root-s = 0.9 TeV and 7 TeV pp collisions and root-s = 5.02 TeV/n p-Pb collisions were obtained and compared with various hadronic interaction models commonly used for cosmic ray air shower simulations. We found any interaction models could not reproduce the observed spectra perfectly. We have also developed a new high-radiation-hard detector utilizing GSO scintillator for the purpose of coming LHC runs at root-s = 13 TeV collisions.

Report

(4 results)
  • 2014 Final Research Report ( PDF )
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (35 results)

All 2015 2014 2013 2012 Other

All Journal Article (9 results) (of which Peer Reviewed: 6 results,  Open Access: 3 results,  Acknowledgement Compliant: 2 results) Presentation (23 results) (of which Invited: 15 results) Remarks (3 results)

  • [Journal Article] Transverse-momentum distribution and nuclear modification factor for neutral pions in the forward-rapidity region in proton-lead collisions at root s = 5.02 TeV2014

    • Author(s)
      O.Adriani et al.
    • Journal Title

      Physical Review C

      Volume: 84 Issue: 6 Pages: 065209-065209

    • DOI

      10.1103/physrevc.89.065209

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Development of the upgraded LHCf calorimeter with Gd2SiO5 (GSO) scintillators2014

    • Author(s)
      Y.Makino et al.,
    • Journal Title

      Proceedings of Science

      Volume: TIPP2014 Pages: 028-028

    • Related Report
      2013 Annual Research Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] Forward physics with the LHCf experiment: a LHC contribution to cosmic-ray physics2014

    • Author(s)
      L.Bonechi et al.
    • Journal Title

      EPJ Web of Conferences

      Volume: 71 Pages: 00019-00019

    • DOI

      10.1051/epjconf/20147100019

    • Related Report
      2013 Annual Research Report
    • Open Access
  • [Journal Article] Calibration of LHCf calorimeters for photon measurement by CERN SPS test beam2012

    • 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

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of zero degree inclusive photon energy spectra for \sqrt{s}=900GeV proton-proton collisions at LHC2012

    • 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

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Performance of very thin Gd2SiO5 scintillator bar for the LHCf experiment2012

    • Author(s)
      T Suzuki, K Kasahara, K Kawade, T Murakami, K Masuda, T Sako,d and S Torii
    • Journal Title

      Journal of Instrumentation

      Volume: 8 Issue: 01 Pages: 1-10

    • DOI

      10.1088/1748-0221/8/01/t01007

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Measurement of gamma gamma* -> pi0 transition form factor at Belle2012

    • 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

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LHC加速器でせまる超高エネルギー宇宙2012

    • Author(s)
      伊藤好孝、さこ隆志
    • Journal Title

      日本物理学会誌,

      Volume: 67, 9 Pages: 625-635

    • NAID

      40019401926

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] LHCf実験の最新成果2012

    • Author(s)
      さこ隆志、毛受弘彰
    • Journal Title

      高エネルギーニュース, 31, 2, 99-106

      Volume: 31, 2 Pages: 99-106

    • Related Report
      2012 Annual Research Report
  • [Presentation] LHCにおける宇宙線相互作用検証実験 LHCf 全体報告(2015年春)2015

    • Author(s)
      さこ隆志
    • Organizer
      第70回日本物理学会年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2013 Annual Research Report
  • [Presentation] Knee領域および最高エネルギー領域での宇宙線反応の実験的研究2014

    • Author(s)
      増田公明
    • Organizer
      東京大学宇宙線研究所共同利用研究成果発表会
    • Place of Presentation
      東京大学
    • Year and Date
      2014-12-12 – 2014-12-13
    • Related Report
      2013 Annual Research Report
  • [Presentation] The LHCf;Study hadron interactions of UHECRs by the very forward measurement at LHC2014

    • Author(s)
      伊藤好孝
    • Organizer
      576th ASRC Seminar
    • Place of Presentation
      日本原子力研究開発機構
    • Year and Date
      2014-11-18
    • Related Report
      2013 Annual Research Report
  • [Presentation] LHCにおける宇宙線相互作用検証実験 LHCf 全体報告(2014年秋)2014

    • Author(s)
      伊藤好孝
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      佐賀大学
    • Year and Date
      2014-09-18 – 2014-09-21
    • Related Report
      2013 Annual Research Report
  • [Presentation] Recent LHCf results and possible future plans of RHIC for p-A or A-A runs2014

    • Author(s)
      さこ隆志
    • Organizer
      The LHC forward physics and diffraction WG meeting
    • Place of Presentation
      Lawrence / Kansas city, USA
    • Year and Date
      2014-09-03 – 2014-09-06
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Forward hadron production at the LHC2014

    • Author(s)
      伊藤好孝
    • Organizer
      International symposium of very high energy cosmic ray interaction 2014
    • Place of Presentation
      CERN
    • Year and Date
      2014-08-18 – 2014-08-22
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Introduction and results of the LHCf experiment2014

    • Author(s)
      さこ隆志
    • Organizer
      low-X workshop
    • Place of Presentation
      京都大学
    • Year and Date
      2014-06-17 – 2014-06-21
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 重イオンによる無機シンチレーターの応答特性2014

    • Author(s)
      さこ隆志
    • Organizer
      H25年度HIMAC共同利用成果発表会
    • Place of Presentation
      ホテルポートプラザちば
    • Year and Date
      2014-04-21 – 2014-04-22
    • Related Report
      2013 Annual Research Report
  • [Presentation] Hadron physics at extremely high energy2014

    • Author(s)
      伊藤好孝
    • Organizer
      Hadron physics symposium
    • Place of Presentation
      名古屋大学
    • Year and Date
      2014-04-17 – 2014-04-19
    • Related Report
      2013 Annual Research Report
  • [Presentation] LHCf results and prospects2014

    • Author(s)
      さこ隆志
    • Organizer
      QCD and Forward Physics at the LHC
    • Place of Presentation
      Trento, Italy
    • Year and Date
      2014-04-14 – 2014-04-18
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Development of GSO calorimeters for the LHCf experiment2014

    • Author(s)
      さこ隆志
    • Organizer
      ELPH研究会C010「素粒子・原子核実験における全吸収型カロリメーターの実例と応用
    • Place of Presentation
      東北大学
    • Year and Date
      2014-03-09 – 2014-03-10
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] LHCf and p-A forward at RHIC2013

    • Author(s)
      伊藤好孝
    • Organizer
      The Physics of p+A collisions at RHIC
    • Place of Presentation
      ブルックヘヴン研究所、米国
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] Forward particle production measured by LHCf; testing hadronic interaction models for CR physics2013

    • Author(s)
      さこ隆志
    • Organizer
      IV Workshop on Air Shower Detection at High Altitude
    • Place of Presentation
      ナポリ、イタリア
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] LHCf forward physics results2013

    • Author(s)
      伊藤好孝
    • Organizer
      Results and prospects of forward physics at the LHC: Implications for the study of diffraction, cosmic-ray interactions, and more
    • Place of Presentation
      CERN、スイス
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] RHICf2013

    • Author(s)
      さこ隆志
    • Organizer
      International Workshop on High Energy Scattering at Zero Degree
    • Place of Presentation
      名古屋、日本
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] LHCf実験における超前方での高エネルギーQCD物理2013

    • Author(s)
      伊藤好孝
    • Organizer
      第68回日本物理学会年会
    • Place of Presentation
      広島大学、日本
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] The results from the LHCf experiment and future prospects2012

    • Author(s)
      伊藤好孝
    • Organizer
      International Symposium for Very High Energy Cosmic Ray Interaction 2012
    • Place of Presentation
      ベルリン、ドイツ
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] The LHCf experiment to verify UHECR interactions at LHC2012

    • Author(s)
      伊藤好孝
    • Organizer
      International Conference for High Energy Physics 2012
    • Place of Presentation
      メルボルン、オーストラリア
    • Related Report
      2012 Annual Research Report
  • [Presentation] Recent accelerator constraints on the air shower MC models2012

    • Author(s)
      さこ隆志
    • Organizer
      VIII TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS
    • Place of Presentation
      Lenzkirch-Saig,ドイツ
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] LHCf and connection to high energy cosmic rays2012

    • Author(s)
      伊藤好孝
    • Organizer
      Hadron Collider Physics Symposium 2012
    • Place of Presentation
      京都
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] LHCにおける宇宙線相互作用検証実験LHCf -全体報告(2012年秋)-2012

    • Author(s)
      さこ隆志
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      京都産業大学、日本
    • Related Report
      2012 Annual Research Report
  • [Presentation] The results from the LHCf experiment and future prospects The2012

    • Author(s)
      伊藤好孝
    • Organizer
      International Symposium for Very High Energy Cosmic Ray Interaction 2012
    • Place of Presentation
      ベルリン、ドイツ
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Presentation] Recent accelerator constraints on the air shower MC models2012

    • Author(s)
      さこ隆志
    • Organizer
      VIII TOURS SYMPOSIUM ON NUCLEAR PHYSICS AND ASTROPHYSICS(
    • Place of Presentation
      Lenzkirch-Saig,ドイツ
    • Related Report
      2011 Annual Research Report
    • Invited
  • [Remarks] LHCf investigates proton–lead collisions

    • URL

      http://cerncourier.com/cws/article/cern/56933

    • Related Report
      2013 Annual Research Report
  • [Remarks] LHCf detectors are back in the LHC tunnel

    • URL

      http://cerncourier.com/cws/article/cern/59923

    • Related Report
      2013 Annual Research Report
  • [Remarks] LHC forward experiment

    • URL

      http://www.stelab.nagoya-u.ac.jp/LHCf/LHCf/index.html

    • Related Report
      2013 Annual Research Report

URL: 

Published: 2011-04-06   Modified: 2019-07-29  

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