Hybrid bubble chamber study of anti-p p interactions at 75-GeV/c

We propose a careful study of antiproton-proton interactions at 75 GeV/c in the Fermilab 30' hybrid bubble chamber. An exposure of 300K pictures is requested to provide 50K interactions of which approximately 7K are annihilation events. Using the properties of this system which is very well matched to the often complex topologies associated with annihilations and to this beam momentum, we plan to study all experimentally accessible features. In particular, single and multi-particle inclusive distributions for charged and neutrals will be measured, exclusive fits will be made where possible, new particles will be searched for, and comparisons made to other energies and to other beam particles.