Weak strangeness production reaction pn to p Lamda in a one-boson-exchange model
The weak production of Λ ’s in nucleon-nucleon scattering is studied in a meson-exchange framework. The weak transition operator for the N → N N Λ reaction is identical to a previously developed weak strangeness-changing transition potential Λ → N NN that describes the nonmesonic decay of hypernucle...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1999 |
| País: | España |
| Recursos: | 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:2445/10976 |
| Acesso em linha: | https://hdl.handle.net/2445/10976 |
| Access Level: | acceso abierto |
| Palavra-chave: | Estructura nuclear Reaccions nuclears Nuclear structure Nuclear reactions |
| Resumo: | The weak production of Λ ’s in nucleon-nucleon scattering is studied in a meson-exchange framework. The weak transition operator for the N → N N Λ reaction is identical to a previously developed weak strangeness-changing transition potential Λ → N NN that describes the nonmesonic decay of hypernuclei. The initial NN and final YN state interaction has been included by using realistic baryon-baryon forces that describe the available elastic scattering data. The total and differential cross sections as well as the parity-violating asymmetry are studied for the reaction p → n p Λ . These observables are found to be sensitive to the opening of the Σ production channel, the choice of the strong interaction potential, and the structure of the weak transition potential. |
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