On the 3-Meson-Exchange Model of Nucleon-Nucleon Scattering Based on the Nambu-Salpeter-Bethe Equation

Toshiyuki Murota, Matu-Tarow Noda, Fujio Tanaka
1970 Progress of theoretical physics  
Recently, one of the authors (F.T) solved the Nambu-Salpeter-Bethe equation numerically for the 1 S0 state of nucleon-nucleon · scattering assuming the exchange of three types of mesons, and reproduced both the phase-shift in the elastic energy region and the low-energy scattering parameters. (the scattering length and ·the effective range) .o He adopted the approximation of considering ladder graphs only and of neglecting the negative-energy contributions. Among the three types. of mesons the
more » ... ass and the coupling constant of the pion and the vectortl Research fellow sponsored by the Japan Society for the Promotion of Science.
doi:10.1143/ptp.43.852 fatcat:5d4futrtazaifpvzdkyz4qho6i