Experimental investigations in particle physics at intermediate energies. Progress report, December 1, 1976--November 30, 1977

During this period there were completed, in collaboration with the University of New Mexico, data taking on single pion production in pp collisions at 800 MeV and on an exploratory experiment to measure n-n elastic cross sections at 800 MeV. The experiments, along with np elastic scattering data are currently being analyzed, and a preliminary account of the np elastic scattering data was presented at the Vancouver Nucleon-Nucleon conference. It is expected to complete data-taking on proton-antiproton annihilations to neutral vees at BNL, working with Rutgers and BNL. One will also set up and take data (in August) on the experiment to search for the three gamma decay mode of the neutral pion, at LAMPF