タムラ タダヒサ   Tamura Tadahisa
  田村 忠久
   所属   神奈川大学  工学部 物理学教室
    神奈川大学大学院  工学研究科 工学専攻(応用物理学領域)
   職種   教授
言語種別 日本語
発行・発表の年月 2013/07
形態種別 学術雑誌
標題 The results from LHCf: very forwardmeasurements for cosmic ray interactions
執筆形態 共著
掲載誌名 33rd International Cosmic Ray Conference, Rio de Janeiro 2013
著者・共著者 H. MENJO, O. ADRIANI, L. BONECHI, M. BONGI, G. CASTELLINI, R. D’ALESSANDRO, M. HAGUENAUER, Y. ITOW, K. KASAHARA, K. KAWADE, Y. MAKINO, K. MASUDA, E. MATSUBAYASHI, G. MITSUKA, Y. MURAKI, P. PAPINI, A-L. PERROT, D. PFEIFFER, S. RICCIARINI, T. SAKO, Y. SHIMIZU, T. SUZUKI, T.TAMURA, S. TORII, A. TRICOMI, AND W.C. TURNER
概要 The LHCf experiment is an unique dedicated experiment for measurement of very forward particle production relevant to cosmic-ray air shower developments by using small electromagnetic imaging calorimeters at the zero degree of the LHC interaction point, IP1. The operationa with p-p collisions at ps = 900GeV and 7 TeV have been done in 2009 and 2010. The results of forward production spectra of photons and p0s are compared with the existing cosmic ray interaction models, SYBILL, QGSJETII, DPMJET3, and EPOS1.99. None of them could completely reproduce the data. On-going hadron analysis will be also important to understand inelasticity of collisions. LHCf has also completed data taking for LHC p-Pb collisions to study nuclear effect relevant to air shower development. This is also very important to validate composition measurements by air-shower experiments
based on XMAX. Current achievement of the LHCf experiment and possible future xperiments at p-A and/or A-A collisions at LHC and RHIC are presented.