Abstract
Recently there is renewal of interest in searching for CP violation in hyperon decays. The current effort at Fermilab is concentrated on measuring the difference between the decay parameters, α, of the Ξ and anti‐Ξ hyperons produced by 800 GeV protons. Experiments E621, with a sample of neutral Ξ hyperons, and E756, using charged Ξ hyperons, will reach a sensitivity of the order of 10−2 or better. In order to search for CP violation in the hyperon sector down to the 10−4 level, a dedicated experiment is called for. It is conceivable that such an experiment could be done at the Fermilab anti‐proton accumulator ring. The other alternative is to perform this experiment at a high energy beam line. The merits and disadvantages of these schemes are discussed.
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