The importance of the eta exchange in the pp->pp eta process up to Tlab = 4.5 GeV (CROSBI ID 123379)
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Podaci o odgovornosti
Ceci, Saša ; Švarc, Alfred ; Zauner, Branimir
engleski
The importance of the eta exchange in the pp->pp eta process up to Tlab = 4.5 GeV
The new and improved treatment of eta meson exchange diagrams turns out to be essential in order to fully describe both total cross-sections and, in particular, the challenging pp invariant mass distributions. Contrary to other approaches, the eta meson contribution in our model is comparable with the leading pi meson exchange term, and using the phenomenological final state interaction we have no need to include other mesons, like rho and omega, in order to obtain good agreement with experiment.
Meson production; Nucleon-nucleon interaction; Eta meson; Inelastic proton scattering
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