Self-consistent relativistic model for pion-nucleon scattering
| Autor: | Wu, Huachuan |
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| Rok vydání: | 1994 |
| Předmět: | |
| Druh dokumentu: | Thesis/Dissertation |
| Popis: | We introduce a relativistic model for pion-nucleon scattering which includes an elementary delta dressed by its decay. Crossing-symmetric single-particle exchange is augmented by parametrized multiple-scattering interactions, with covariant sideways form factors in both 3- and 4-field vertices. Causality is enforced by dispersion relations. Unitary fits to observed on-shell amplitudes are obtained; a modest number of parameters precisely reproduce all 6 S- and P-wave ��-N amplitudes up to 1.36 GeV invariant mass. Graduation date: 1995 |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
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