Production of the g-meson in πN → g0N charge exchange channels at 7 GeV/c

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.