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, S. 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 publicationTours Symposium on Nuclear Physics and Astrophysics - VII
Number of pages3
Publication statusPublished - 2010
Event7th Tours Symposium on Nuclear Physics and Astrophysics - Kobe, Japan
Duration: 2009 Nov 162009 Nov 20

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference7th Tours Symposium on Nuclear Physics and Astrophysics


  • GZK cutoff
  • LHC

ASJC Scopus subject areas

  • General Physics and Astronomy


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