Asymmetry parameter for the nonmesonic decay of Λ5He
- Autores
- Barbero, César Alberto; Galeão, Alfredo Pio; Krmpotić, Francisco
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report the preliminary result of an exact calculation of the asymmetry parameter, aΛ, in the nonmesonic hypernuclear decay, based on a one-meson-exchange (OME) model. For the case of Λ 5He and including one-pion-exchange only, the result is shown not to differ considerably from the one obtained with the approximate formula widely used in the literature. In particular, the sign of aΛ remains negative, in disagreement with its most recent experimental determination. Whether these facts remain true for heavier hypernuclei and in a more complete OME model is still under investigation.
Facultad de Ciencias Exactas - Materia
- Física
- 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:10915/84812
Ver los metadatos del registro completo
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Asymmetry parameter for the nonmesonic decay of Λ5HeBarbero, César AlbertoGaleão, Alfredo PioKrmpotić, FranciscoFísicaWe report the preliminary result of an exact calculation of the asymmetry parameter, aΛ, in the nonmesonic hypernuclear decay, based on a one-meson-exchange (OME) model. For the case of Λ 5He and including one-pion-exchange only, the result is shown not to differ considerably from the one obtained with the approximate formula widely used in the literature. In particular, the sign of aΛ remains negative, in disagreement with its most recent experimental determination. Whether these facts remain true for heavier hypernuclei and in a more complete OME model is still under investigation.Facultad de Ciencias Exactas2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf822-824http://sedici.unlp.edu.ar/handle/10915/84812enginfo:eu-repo/semantics/altIdentifier/issn/0103-9733info:eu-repo/semantics/altIdentifier/doi/10.1590/S0103-97332004000500030info: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:UNLP2026-05-27T11:10:28Zoai:sedici.unlp.edu.ar:10915/84812Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292026-05-27 11:10:28.417SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| title |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| spellingShingle |
Asymmetry parameter for the nonmesonic decay of Λ5He Barbero, César Alberto Física |
| title_short |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| title_full |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| title_fullStr |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| title_full_unstemmed |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| title_sort |
Asymmetry parameter for the nonmesonic decay of Λ5He |
| dc.creator.none.fl_str_mv |
Barbero, César Alberto Galeão, Alfredo Pio Krmpotić, Francisco |
| author |
Barbero, César Alberto |
| author_facet |
Barbero, César Alberto Galeão, Alfredo Pio Krmpotić, Francisco |
| author_role |
author |
| author2 |
Galeão, Alfredo Pio Krmpotić, Francisco |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Física |
| topic |
Física |
| dc.description.none.fl_txt_mv |
We report the preliminary result of an exact calculation of the asymmetry parameter, aΛ, in the nonmesonic hypernuclear decay, based on a one-meson-exchange (OME) model. For the case of Λ 5He and including one-pion-exchange only, the result is shown not to differ considerably from the one obtained with the approximate formula widely used in the literature. In particular, the sign of aΛ remains negative, in disagreement with its most recent experimental determination. Whether these facts remain true for heavier hypernuclei and in a more complete OME model is still under investigation. Facultad de Ciencias Exactas |
| description |
We report the preliminary result of an exact calculation of the asymmetry parameter, aΛ, in the nonmesonic hypernuclear decay, based on a one-meson-exchange (OME) model. For the case of Λ 5He and including one-pion-exchange only, the result is shown not to differ considerably from the one obtained with the approximate formula widely used in the literature. In particular, the sign of aΛ remains negative, in disagreement with its most recent experimental determination. Whether these facts remain true for heavier hypernuclei and in a more complete OME model is still under investigation. |
| publishDate |
2004 |
| dc.date.none.fl_str_mv |
2004 |
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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/10915/84812 |
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eng |
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eng |
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