Pion-Pion Decay Distributions for π⁻p → π⁺π⁻n at 100 and 175 GeV/c

[摘要]

We report measurements of the reaction π^-p → π⁺π^-n at 100 and 175 GeV/c using a large wire chamber spectrometer at Fermilab. Production of ρ⁰, f⁰, and g⁰ resonances was observed. Cross sections for π^-p → π⁺π^-n in the ρ⁰ mass region are given. Decay angle distributions for ππ masses from .55 to 3.5 GeV/c² are presented. Moment analyses of the decay distributions are made as a function of ππ mass from .55 to 2.4 GeV/c². Contours of ππ decay distribution dips are given in s_ππ and t_ππ. Comparisons with several lower energy experiments are made. Detailed discussions of the apparatus, trigger, and analysis procedures are given.

[发布机构] University:California Institute of Technology;Department:Physics, Mathematics and Astronomy

[关键词] Physics