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A meson-exchange piN model up to energies sqrt(s) < 2.0 GeV | | Shin Nan Yang
; Guan Yeu Chen
; S.S. Kamalov
; | | Date: |
19 Oct 2006 | | Abstract: | A meson-exchange piN model, previously constructed using three-dimensional reduction scheme of the Bethe-Salpeter equation for a model Lagrangian involving pi, eta, N, Delta, rho, and sigma fields, is extended to energies up to 2 GeV by including the eta N channel and all the four stars pi N resonances up to the F-waves. The effects of other 2 pion channels are taken into account phenomenologically. The extended model gives an excellent fit to both piN phase shifts and inelasticity parameters in all channels up to the F-waves. However, a few of the extracted resonance parameters differ considerably from the PDG values. | | Source: | arXiv, nucl-th/0610076 | | Services: | Forum | Review | PDF | Favorites | |
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