Searching for High Energy Cosmic-Ray Protons Using a New Way of Finding and Tracking Particles in Stratospheric X-Ray Emulsion Chambers (According to Data from the Russian-Japanese RUNJOB Experiment)

摘要

An continuing search for primary particles is performed using a new means of finding and tracking particles in nuclear emulsions. Particle interactions registered in stratospheric X-ray emulsion chambers (XECs) are attributed to nucleon-nuclei interactions recorded in the Russian-Japanese RUNJOB experiment. According to the data from processing the interactions between galactic particles and matter in XECs RUNJOB-3B, 6A, and RUNJOB-11A, 11B with energy thresholds ΣE_γ ≥ 3 and ΣE_γ ≥ 5 TeV, respectively, around 50% of all proton tracks went unidentified, which coincides with the initial results from the RUNJOB experiment.