The performance of LHCf detector

K. Kawade, O. Adriani, L. Bonechi, M. Bongi, G. Castellini, R. D'Alessandro, A. Faus, M. Grandi, M. Haguenauer, Y. Itow, K. Kasahara, D. Macina, T. Mase, K. Masuda, Y. Matsubara, H. Menjo, G. Mitsuka, Y. Muraki, M. Nakai, P. PapiniA. L. Perrot, S. Ricciarini, T. Sako, Y. Shimizu, K. Taki, T. Tamura, Shoji Torii, A. Tricomi, W. C. Turner, J. Velasco, A. Viciani, K. Yoshida

    Research output: Chapter in Book/Report/Conference proceedingConference contribution


    In cosmic ray physics, the uncertainty of the hadron interaction model causes systematic errors of air shower simulations in high-energy region. To solve the problem, the LHCf experiment measures energies and transverse momenta of neutral particles emitted in the forward region of 14TeV p-p collision at CERN LHC. Two LHCf detectors, consisting of sampling and imaging calorimeters, are installed at zero degree collision angle at ± 140m from the interaction point 1 (IP1). The energy resolution is confirmed as to be <5% and the position resolution <0.2mm for gamma-rays with energies from 100GeV to 200GeV by test beam results at the CERN SPS. Use of the Front Counter reduces the beam-gas background by a factor 50.

    Original languageEnglish
    Title of host publicationAIP Conference Proceedings
    Number of pages3
    Publication statusPublished - 2010
    Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe
    Duration: 2009 Nov 162009 Nov 20


    Other7th Tours Symposium on Nuclear Physics and Astrophysics


    • GZK cutoff
    • LHC
    • UHECR

    ASJC Scopus subject areas

    • Physics and Astronomy(all)


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