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Production of $\eta\prime$ Mesons in the $pp \to pp\eta\prime$ Reaction at 3.67 GeV/c

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arxiv nucl-ex/0008017 v1 pith:EAE65JBB submitted 2000-08-31 nucl-ex

classification nucl-ex
keywords primeproductioncrossbeenexclusivemeasuredmesonmesons
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abstract

The ratio of the total exclusive production cross sections for $\eta\prime$ and $\eta$ mesons has been measured in the $pp$ reaction at $p_{beam}=3.67$ GeV/c. The observed $\eta\prime/\eta$ ratio is $(0.83\pm{0.11}^{+0.23}_{-0.18})\times 10^{-2}$ from which the exclusive $\eta\prime$ meson production cross section is determined to be $(1.12\pm{0.15}^{+0.42}_{-0.31})\mu b$. Differential cross section distributions have been measured. Their shape is consistent with isotropic $\eta\prime$ meson production.

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