The Production of Mesons above 10 Bev

Abstract
12 000 local penetrating showers from carbon and paraffin have been compared using a 31-channel hodoscope in order to study nucleon-hydrogen collisions above 10 Bev. The average multiplicity of penetrating charged particles from the detected showers from carbon is found to be 4.42±0.20 and the multiplicity from hydrogen considerably less. An upper limit of 2.4 is given. It is concluded that the multiple production of mesons is infrequent at this energy.