Note on the Pais-Piccioni Experiment

摘要

Two experiments to cheek the Gellmann-Pais 1 “particle mixture” suggestion are analyzed, using a detailed, if crude, phenomenological description. A cloud-chamber experiment of the type proposed by Pais and Piccionl 2 is compared to an experiment using a liquid-xenon bubble chamber. 3 It is found that for likely values of the parameters involved, both experiments are considerably more difficult than envisaged by Pais and Piccioni. For intensity reasons, the bubble-chamber experiment seems preferable. However, unless quite accidentally the relevant cross sec¬tions have rather special values, it would seem that experiments of this type would have to wait until accelerators are available capable of pro¬ducing considerably greater intensities than those in operation at present.