The higher resonances in pion-nucleon scattering

✍ Scribed by P.G Federbush; M.T Grisaru; M Tausner

• Publisher: Elsevier Science
• Year: 1962
• Tongue: English
• Weight: 1006 KB
• Volume: 18
• Category: Article
• ISSN: 0003-4916
• DOI: 10.1016/0003-4916(62)90057-x

✦ Synopsis

A model for calculating the pion-nucleon amplitude in the region of the higher resonances is presented. Using partial wave dispersion relations, it attempts to take into account the inelastic process N + T 4 N + a + a by assuming that the final particles interact strongly in pairs, and treating the interacting pairs as stable particles. In addition to the singularities required by unitarity, it is assumed that only the unphysical singularities due to singleparticle exchanges are important.