Analysis of exchange terms in a projected extended random phase approximation theory applied to the quasielastic (e,e') reaction
A systematic study of the influence of exchange terms in the longitudinal and transverse nuclear response to quasielastic ( e , e ′ ) reactions is presented. The study is performed within the framework of the extended random phase approximation, which in conjuction with a projection method permits a...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1998 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/10975 |
| Acceso en línea: | https://hdl.handle.net/2445/10975 |
| Access Level: | acceso abierto |
| Palabra clave: | Estructura nuclear Reaccions nuclears Nuclear structure Nuclear reactions |
| Sumario: | A systematic study of the influence of exchange terms in the longitudinal and transverse nuclear response to quasielastic ( e , e ′ ) reactions is presented. The study is performed within the framework of the extended random phase approximation, which in conjuction with a projection method permits a separation of various contributions tied to different physical processes. The calculations are performed in nuclear matter up to second order in the residual interaction for which we take a ( π + ρ ) model with the addition of the Landau-Migdal g ′ parameter. Exchange terms are found to be important only for the random-phase-approximation-type contributions around the quasielastic peak. |
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