Speaker
Prof.
katsuaki kasahara
(waseda university)
Description
LHCf is an experiment at CERN LHC and is dedicated to measure photons and neutrons
in the very forward region to calibrate M.C event generator. Cosmic ray research over
10^14 eV normally uses air shower observation technique which must employ M.C
simulation to derive incident cosmic ray energy and species etc. Air shower
development is governed by the energetic secondary particles but we have meager
information about the spectra of such particles. Therefore, we must calibrate M.C codes
by experimental data. The first LHCf data on the photon spectrum is compared with
M.C used in the cosmic ray field. The interaction model validity will also be discussed in
conjunction with other LHC data on the eta distribution in the central region.
Primary author
Prof.
katsuaki kasahara
(waseda university)
