Pairing gap energy correction in Shell model for the neutron-rich tin isotopes
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedade Brasileira de Física
2009
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| _version_ | 1876476320811057152 |
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| author | L. Aissaoui |
| author_facet | L. Aissaoui |
| contents | Pairing gap energy correction in Shell model for the neutron-rich tin isotopes L. Aissaoui F. Benrachi D. Boumala Física, Astronomía y Matemáticas Oxbash code 132Sn region Effective interaction The region in the vicinity of 132Sn, gathering numerous isotopes of important masses, shows lots of interests for explaining the most interesting phenomena. It offers among others the possibility to extract the N-N empirical interactions so as to test theoretical shell model description of nuclear structure in this region. The researches on the neutron-rich tin isotopes present the anomalies in a systematic variation on various spectroscopic data such as the first 2+ excited state and reduced probabilities B(E2;2+? 0+). In order to improve the OXBASH interactions which are based on the shell model calculations, we have modified some neutron-neutron and proton-proton tow body matrix elements of CW5082 interaction of 132Sn region by adding to them the pairing gap energy. The calculations turn out a new interaction so called CWΔ5082, allowing to determine the excited energies and the reduced probabilities B(E2) of Sn and Te isotopes for A = 134 and 136 masses. The obtained results display a remarkable enhancement in the predictive power of experimental values. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413564008 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.39 |
| format | Artículo científico |
| id | redalyc_46413564008 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Pairing gap energy correction in Shell model for the neutron-rich tin isotopes L. Aissaoui Física, Astronomía y Matemáticas Oxbash code 132Sn region Effective interaction Pairing gap energy correction in Shell model for the neutron-rich tin isotopes L. Aissaoui F. Benrachi D. Boumala Física, Astronomía y Matemáticas Oxbash code 132Sn region Effective interaction The region in the vicinity of 132Sn, gathering numerous isotopes of important masses, shows lots of interests for explaining the most interesting phenomena. It offers among others the possibility to extract the N-N empirical interactions so as to test theoretical shell model description of nuclear structure in this region. The researches on the neutron-rich tin isotopes present the anomalies in a systematic variation on various spectroscopic data such as the first 2+ excited state and reduced probabilities B(E2;2+? 0+). In order to improve the OXBASH interactions which are based on the shell model calculations, we have modified some neutron-neutron and proton-proton tow body matrix elements of CW5082 interaction of 132Sn region by adding to them the pairing gap energy. The calculations turn out a new interaction so called CWΔ5082, allowing to determine the excited energies and the reduced probabilities B(E2) of Sn and Te isotopes for A = 134 and 136 masses. The obtained results display a remarkable enhancement in the predictive power of experimental values. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413564008 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.4 Vol.39 |
| title | Pairing gap energy correction in Shell model for the neutron-rich tin isotopes |
| topic | Física, Astronomía y Matemáticas Oxbash code 132Sn region Effective interaction |
| url | https://www.redalyc.org/articulo.oa?id=46413564008 |