Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay
- Autores
- Bauer, Eduardo; Garbarino, G.
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange weak transition potential and a Bonn nucleon–nucleon strong potential. Ground state correlations and final state interactions, at second order in the nucleon–nucleon interaction, are introduced on the same footing for all the isospin channels of one- and two-nucleon induced decays. Single and double-coincidence nucleon spectra are predicted for 12 Λ C and compared with recent KEK and FINUDA data. The key role played by quantum interference terms allows us to improve the predictions obtained with intranuclear cascade codes. Discrepancies with data remain for proton emission.
Facultad de Ciencias Exactas - Materia
-
Física
Λ-hypernuclei
Non-mesonic weak decay
Two-nucleon induced decay
FSI - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/129301
Ver los metadatos del registro completo
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Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decayBauer, EduardoGarbarino, G.FísicaΛ-hypernucleiNon-mesonic weak decayTwo-nucleon induced decayFSIA consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange weak transition potential and a Bonn nucleon–nucleon strong potential. Ground state correlations and final state interactions, at second order in the nucleon–nucleon interaction, are introduced on the same footing for all the isospin channels of one- and two-nucleon induced decays. Single and double-coincidence nucleon spectra are predicted for 12 Λ C and compared with recent KEK and FINUDA data. The key role played by quantum interference terms allows us to improve the predictions obtained with intranuclear cascade codes. Discrepancies with data remain for proton emission.Facultad de Ciencias Exactas2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf306-310http://sedici.unlp.edu.ar/handle/10915/129301enginfo:eu-repo/semantics/altIdentifier/issn/0370-2693info:eu-repo/semantics/altIdentifier/arxiv/1103.2277info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.017info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:12:11Zoai:sedici.unlp.edu.ar:10915/129301Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:12:11.863SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| title |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| spellingShingle |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay Bauer, Eduardo Física Λ-hypernuclei Non-mesonic weak decay Two-nucleon induced decay FSI |
| title_short |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| title_full |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| title_fullStr |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| title_full_unstemmed |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| title_sort |
Microscopic approach to nucleon spectra in hypernuclear non-mesonic weak decay |
| dc.creator.none.fl_str_mv |
Bauer, Eduardo Garbarino, G. |
| author |
Bauer, Eduardo |
| author_facet |
Bauer, Eduardo Garbarino, G. |
| author_role |
author |
| author2 |
Garbarino, G. |
| author2_role |
author |
| dc.subject.none.fl_str_mv |
Física Λ-hypernuclei Non-mesonic weak decay Two-nucleon induced decay FSI |
| topic |
Física Λ-hypernuclei Non-mesonic weak decay Two-nucleon induced decay FSI |
| dc.description.none.fl_txt_mv |
A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange weak transition potential and a Bonn nucleon–nucleon strong potential. Ground state correlations and final state interactions, at second order in the nucleon–nucleon interaction, are introduced on the same footing for all the isospin channels of one- and two-nucleon induced decays. Single and double-coincidence nucleon spectra are predicted for 12 Λ C and compared with recent KEK and FINUDA data. The key role played by quantum interference terms allows us to improve the predictions obtained with intranuclear cascade codes. Discrepancies with data remain for proton emission. Facultad de Ciencias Exactas |
| description |
A consistent microscopic diagrammatic approach is applied for the first time to the calculation of the nucleon emission spectra in the non-mesonic weak decay of Λ -hypernuclei. We adopt a nuclear matter formalism extended to finite nuclei via the local density approximation, a one-meson exchange weak transition potential and a Bonn nucleon–nucleon strong potential. Ground state correlations and final state interactions, at second order in the nucleon–nucleon interaction, are introduced on the same footing for all the isospin channels of one- and two-nucleon induced decays. Single and double-coincidence nucleon spectra are predicted for 12 Λ C and compared with recent KEK and FINUDA data. The key role played by quantum interference terms allows us to improve the predictions obtained with intranuclear cascade codes. Discrepancies with data remain for proton emission. |
| publishDate |
2011 |
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2011 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/129301 |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0370-2693 info:eu-repo/semantics/altIdentifier/arxiv/1103.2277 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physletb.2011.03.017 |
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openAccess |
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