研究者情報 | 神奈川大学

タムラ　タダヒサ Tamura Tadahisa 田村　忠久所属神奈川大学工学部応用物理学科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	2011/02
形態種別	学術雑誌
査読	査読あり
標題	Monte Carlo study of forward π⁰ production spectra to be measured by the LHCf experiment for the purpose of benchmarking hadron interaction models at 10¹7 eV
執筆形態	共著
掲載誌名	Astroparticle Physics
巻・号・頁	34(7),513-520頁
著者・共著者	H. Menjo, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D’Alessandro, A. Faus, K. Fukui, M. Haguenauer, Y. Itow, K. Kasahara, K. Kawade, D. Macina, T. Mase, K. Masuda, Y. Matsubara, G. Mitsuka, M. Mizuishi, Y. Muraki, M. Nakai, P. Papini, A.-L. Perrot, S. Ricciarini, T. Sako, Y. Shimizu, K. Taki, T. Tamura, S. Torii, A. Tricomi, W.C. Turner, J. Velasco, A. Viciani, K. Yoshida
概要	The LHCf experiment aims to improve knowledge of forward neutral particle production spectra at the LHC energy which is relevant for the interpretation of air shower development of high energy cosmic rays. Two detectors, each composed of a pair of sampling and imaging calorimeters, have been installed at the forward region of IP1 to measure π0 energy spectra above 600 GeV. In this paper, we present a Monte Carlo study of the π0 measurements to be performed with one of the LHCf detectors for proton–proton collisions at sqrt(s) = 14 TeV. In approximately 40 min of operation at luminosity　0.8x10²9 cm^-2 s^-1 during the beam commissioning phase of LHC, about 1.5 × 10⁴ π⁰ events are expected to be obtained at two transverse positions of the detector. The backgrounds from interactions of secondary particles with beam pipes and interactions of beam particles with residual gas in the beam pipes are expected to be less than 0.1% of the signal from π0s. We also discuss the capability of LHCf measurements to discriminate between the various hadron interaction models that are used for simulation of high energy air showers, such as DPMJET3.03, QGSJETII-03, SIBYLL2.1 and EPOS1.99.