Elsevier

Nuclear Physics B

Volume 33, Issue 1, 1 October 1971, Pages 1-12
Nuclear Physics B

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

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Abstract

Data from π+d and πp 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 JP = 3 for the g0 (1670) meson. Spin-parities 1 and 5 were not in agreement with our data. An analysis of the differential cross section for ϱ0, f0 and g0 production using the one-pion exchange model plus form factors was consistent with significant widths for g0 decays to channel other than π+π, while being in good agreement with the experimental branching ratios for ϱ0 and f0 mesons.

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    Supported in part by the National Research Council of Canada and the United States Atomic Energy Commission.

    ∗∗

    Appreciates the support of the National Research Council of Canada and Gulf Oil Canada Ltd. during the period of this research.

    ∗∗∗

    Now at Duke University, Durham, North Carolina, USA.

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