Hadronic Interactions at Energies around 10 exp 3 TeV Inferred from the Large-Scale Emulsion Chamber Experiment at Mt. Fuji

摘要

Details of experimental results, obtained with the large-scale emulsion chambers at Mt. Fuji (3776 m above sea level), are presented to investigate the hadronic interactions at energies around 10 exp 3 TeV, comparing with the Monte Carlo simulation based on various assumed interaction models and primary particles. It may be briefly summarized as 1) Scaling in the fragmentation region can be valid up to 10 exp 3 TeV at least only if the primary particles are mixed, with significant amounts of heavy nuclei at energies over 10 exp 14 eV, 2) Cross sections should continue to increase with energy up to 10 exp 3 TeV, at least, at almost the same rate as that obtained at lower energies, 3) There exist some evidence to indicate remarkable production of particles or jets with high P sub(t) of several GeV/c at energies around 10 exp 3 TeV, 4) Hadron to gamma-ray ratios in the observed family events remain almost within the scope of simulation prediction. Other interesting characters of family events are also discussed. (Atomindex citation 14:758164)