eta-prime Meson Production in Nucleon-Nucleon Collisions Near The Threshold

Abstract

The production of ${\eta }^{\prime }$ mesons in the reactions $pp\to pp{\eta }^{\prime }$ and $pn\to pn{\eta }^{\prime }$ at threshold-near energies is analyzed within a covariant effective meson-nucleon theory. The description of cross section and angular distributions of the available data in this kinematical region in the $pp$ channel is accomplished by including meson currents and nucleon currents with the resonances $S_{11}(1650)$, $P_{11}(1710)$ and $P_{13}(1720)$. Predictions for the $pn$ channel are given. The di-electron production from subsequent ${\eta }^{\prime }$ Dalitz decay ${\eta }^{\prime }\to \gamma {\gamma }^{\ast }\to \gamma e^{+}{e}^{-}$ is also calculated and numerical results are presented for intermediate energy and kinematics of possible experiments with HADES, CLAS and KEK-PS.

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Cited by in corpus (8)

• Etaprime and Eta Mesons with Connection to Anomalous Glue
• Exclusive central diffractive production of scalar and pseudoscalar mesons; tensorial vs. vectorial pomeron
• Strong decay of low-lying $S_{11}$ and $D_{13}$ nucleon resonances to pseudoscalar mesons and octet baryons
• Di-Electrons from Resonances in Nucleon-Nucleon Collisions
• Few-body aspects of the near threshold pseudoscalar meson production
• Upper limit of the total cross section for the pn --> pn eta' reaction
• Omega and Eta (Eta-prime) mesons from NN and ND collisions at intermediate energies
• Studies of properties of the eta' meson at the COSY-11 facility