Title: Large Search for Direct CP Violation in Hyperon Decays


The HyperCP experiment (FNAL E871) was designed to search for CP violation in hyperon decays. We study the distribution of the proton from the decay sequence , , and of the anti-proton from the charge-conjugate decays. Any measured asymmetry between the distributions would result from direct CP violation in the decays. We report on an analysis of a fraction of the data yielding a precision of an order of magnitude better than the present limit.