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dc.contributor.author | Gómez Nicola, Ángel | |
dc.contributor.author | Nieves Pamplona, Juan Miguel | |
dc.contributor.author | Peláez Sagredo, José Ramón | |
dc.contributor.author | Ruiz Arriola, Enrique | |
dc.date.accessioned | 2014-10-17T09:44:33Z | |
dc.date.available | 2014-10-17T09:44:33Z | |
dc.date.issued | 2000 | |
dc.identifier.citation | Gómez Nicola, Ángel Nieves Pamplona, Juan Miguel Peláez Sagredo, José Ramón Ruiz Arriola, Enrique 2000 Improved unitarized Heavy Baryon Chiral Perturbation Theory for pi N scattering Physics Letters B 486 1-2 77 85 | |
dc.identifier.uri | http://hdl.handle.net/10550/39233 | |
dc.description.abstract | We show how the unitarized description of pion nucleon scattering within Heavy Baryon Chiral Perturbation Theory can be considerably improved, by a suitable reordering of the expansion over the nucleon mass. Within this framework, the Delta resonance and its associated pole can be recovered from the chiral parameters obtained from low-energy determinations. In addition, we can obtain a good description of the six S and P wave phase shifts in terms of chiral parameters with a natural size and compatible with the Resonance Saturation Hypothesis. | |
dc.language.iso | eng | |
dc.relation.ispartof | Physics Letters B, 2000, vol. 486, num. 1-2, p. 77-85 | |
dc.subject | Física | |
dc.title | Improved unitarized Heavy Baryon Chiral Perturbation Theory for pi N scattering | |
dc.type | journal article | es_ES |
dc.date.updated | 2014-10-17T09:44:33Z | |
dc.identifier.doi | 10.1016/S0370-2693(00)00761-9 | |
dc.identifier.idgrec | 068606 | |
dc.rights.accessRights | open access | es_ES |