Abstract
Data from π +d and π −p experiments at 7 GeV/ c have been combined to yield 10 654 events in the π + π − mass spectrum. A spin-parity analysis of this data favors a spin-parity assignment of J P = 3 − for the g 0 (1670) meson. Spin-parities 1 − and 5 − were not in agreement with our data. An analysis of the differential cross section for ϱ 0, f 0 and g 0 production using the one-pion exchange model plus form factors was consistent with significant widths for g 0 decays to channel other than π + π −, while being in good agreement with the experimental branching ratios for ϱ 0 and f 0 mesons.
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