Invariant mass distributions for the pp to p p eta reaction at Q=10 MeV

Abstract

Proton-proton and proton-eta invariant mass distributions and the total cross section for the pp to pp eta reaction have been determined near the threshold at an excess energy of Q=10 MeV. The experiment has been conducted using the COSY-11 detector setup and the cooler synchrotron COSY. The determined invariant mass spectra reveal significant enhancements in the region of low proton-proton relative momenta, similarly as observed previously at higher excess energies of Q=15.5 MeV and Q= 40MeV.

6 pages, 3 figures, submitted to Eur.Phys. J. A

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Cited by in corpus (8)

• Etaprime and Eta Mesons with Connection to Anomalous Glue
• Few-body aspects of the near threshold pseudoscalar meson production
• Study of the eta meson production with the polarised proton beam
• Formation of eta'(958) bound states by (gamma, d) reaction
• Determination of the analysing power for the $\vec{p}p\to pp\eta$ reaction using WASA-at-COSY detector system
• Baryon resonance production in the $\pi +d$ reaction and search for $\eta$-mesic nuclei at J-PARC
• Spin dependence of η meson production in proton-proton collisions close to threshold
• Production and interaction of the eta meson with nucleons and nuclei