Validity of the coupled-channel method for the study ofΔexcitation in intermediate-energy NN scattering
- 1 December 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 32 (6) , 1986-1989
- https://doi.org/10.1103/physrevc.32.1986
Abstract
Within the unitary πNN theory with Δ excitation, the effect of πd and πNN production channels on NN elastic scattering is examined. It is shown that the two-body coupled-channel method, which has been widely employed to study the Δ excitation in intermediate-energy NN scattering, is a valid approximation. Our results indicate that the difficulty encountered by the meson-exchange theory in understanding the NN data up to 1 GeV cannot be resolved within the model based on the one-pion-exchange Δ excitation mechanism.Keywords
This publication has 13 references indexed in Scilit:
- Theory of mesonic and dibaryonic excitations in theπNN system: Derivation ofπNN scattering equationsPhysical Review C, 1985
- Relativistic NN scattering calculations withdegrees of freedomPhysical Review C, 1984
- Meson theory of nucleon-nucleon scattering up to 2 GeVPhysical Review C, 1984
- Relativistic one-boson exchange calculations for coupled NNNΔ scatteringPhysics Letters B, 1983
- Peripheral inelasticities in T=1 nucleon-nucleon collisionsJournal of Physics G: Nuclear Physics, 1982
- Coupled-channel interaction for intermediate-energy nucleon-nucleon reactionsPhysical Review D, 1982
- Phenomenological Hamiltonian for pions, nucleons, andisobars: Applications to the pion-deuteron systemPhysical Review C, 1981
- Unified theory ofandscatteringPhysical Review C, 1980
- Nucleon-nucleon scattering above the pion production thresholdPhysical Review C, 1979
- The reaction p + p → d + π+ with a polarized beam and targetPhysics Letters B, 1978