Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei
Having in mind its future extension for theoretical investigations related to charmed nuclei, we develop a relativistic formalism for the nonmesonic weak decay of single-Λ hypernuclei in the framework of the independent-particle shell model and with the dynamics represented by the (π, K) one-meson-e...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/127353 |
| Aporte de: |
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I19-R120-10915-127353 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Física relativistic nuclear models strange hypernuclei charm hypernuclei nonmesonic weak decay |
| spellingShingle |
Ciencias Exactas Física relativistic nuclear models strange hypernuclei charm hypernuclei nonmesonic weak decay Fontoura, C. E. Krmpotić, Francisco Galeão, A. P. De Conti, C. Krein, Gastão Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| topic_facet |
Ciencias Exactas Física relativistic nuclear models strange hypernuclei charm hypernuclei nonmesonic weak decay |
| description |
Having in mind its future extension for theoretical investigations related to charmed nuclei, we develop a relativistic formalism for the nonmesonic weak decay of single-Λ hypernuclei in the framework of the independent-particle shell model and with the dynamics represented by the (π, K) one-meson-exchange model. Numerical results for the one-nucleon-induced transition rates of <sub>Λ</sub>¹²C are presented and compared with those obtained in the analogous nonrelativistic calculation. There is satisfactory agreement between the two approaches, and the most noteworthy difference is that the ratio Γ<sub>n</sub>/Γ<sub>p</sub> is appreciably higher and closer to the experimental value in the relativistic calculation. Large discrepancies between ours and previous relativistic calculations are found, for which we do not encounter any fully satisfactory explanation. The most recent experimental data is well reproduced by our results. In summary, we have achieved our purpose to develop a reliable model for the relativistic calculation of the nonmesonic weak decay of Λ-hypernuclei, which can now be extended to evaluate similar processes in charmed nuclei. |
| format |
Articulo Articulo |
| author |
Fontoura, C. E. Krmpotić, Francisco Galeão, A. P. De Conti, C. Krein, Gastão |
| author_facet |
Fontoura, C. E. Krmpotić, Francisco Galeão, A. P. De Conti, C. Krein, Gastão |
| author_sort |
Fontoura, C. E. |
| title |
Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| title_short |
Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| title_full |
Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| title_fullStr |
Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| title_full_unstemmed |
Relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| title_sort |
relativistic model for the nonmesonic weak decay of single-lambda hypernuclei |
| publishDate |
2016 |
| url |
http://sedici.unlp.edu.ar/handle/10915/127353 |
| work_keys_str_mv |
AT fontourace relativisticmodelforthenonmesonicweakdecayofsinglelambdahypernuclei AT krmpoticfrancisco relativisticmodelforthenonmesonicweakdecayofsinglelambdahypernuclei AT galeaoap relativisticmodelforthenonmesonicweakdecayofsinglelambdahypernuclei AT decontic relativisticmodelforthenonmesonicweakdecayofsinglelambdahypernuclei AT kreingastao relativisticmodelforthenonmesonicweakdecayofsinglelambdahypernuclei |
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Repositorios |
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1764820451609018368 |