Inclusive production of large-transverse-momentum hadrons and hadron pairs

We have studied interactions of 200, 300, and 400 GeV protons with beryllium and tungsten targets, in which two large-$p_t$ hadrons were produced roughly back-to-back near 90° in the proton-nucleon center-of-momentum system. Both hadrons could be identified. Some results from this work were published earlier. This paper describes properties of the apparatus, data on the two-particle correlation as a function of the kinematic variables and quantum numbers of the produced hadrons, invariant two-particle cross sections, and scaling properties of symmetric hadron-pair production.