Nonmesonic weak decay spectra of 4/ʌ He
To comprehend the recent Brookhaven National Laboratory experiment E788 on He Λ 4, we have outlined a simple theoretical framework, based on the independent-particle shell model, for the one-nucleon-induced nonmesonic weak decay spectra. Basically, the shapes of all the spectra are tailored by the k...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/129532 |
| Aporte de: |
| id |
I19-R120-10915-129532 |
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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 |
Física Nonmesonic decay One-nucleon spectra Two-nucleon spectra One-meson-exchange model s-Shell hypernuclei Independent-particle shell model |
| spellingShingle |
Física Nonmesonic decay One-nucleon spectra Two-nucleon spectra One-meson-exchange model s-Shell hypernuclei Independent-particle shell model Bauer, Eduardo Galeao, A. P. Hussein, M. S. Krmpotić, Francisco Parker, Joseph D. Nonmesonic weak decay spectra of 4/ʌ He |
| topic_facet |
Física Nonmesonic decay One-nucleon spectra Two-nucleon spectra One-meson-exchange model s-Shell hypernuclei Independent-particle shell model |
| description |
To comprehend the recent Brookhaven National Laboratory experiment E788 on He Λ 4, we have outlined a simple theoretical framework, based on the independent-particle shell model, for the one-nucleon-induced nonmesonic weak decay spectra. Basically, the shapes of all the spectra are tailored by the kinematics of the corresponding phase space, depending very weakly on the dynamics, which is gauged here by the one-meson-exchange potential. In spite of the straightforwardness of the approach a good agreement with data is achieved. This might be an indication that the final-state-interactions and the two-nucleon induced processes are not very important in the decay of this hypernucleus. We have also found that the π + K exchange potential with soft vertex-form-factor cutoffs (Λ π ≈ 0.7 GeV, Λ K ≈ 0.9 GeV ), is able to account simultaneously for the available experimental data related to Γ p and Γ n for H Λ 4, He Λ 4, and He Λ 5. |
| format |
Articulo Articulo |
| author |
Bauer, Eduardo Galeao, A. P. Hussein, M. S. Krmpotić, Francisco Parker, Joseph D. |
| author_facet |
Bauer, Eduardo Galeao, A. P. Hussein, M. S. Krmpotić, Francisco Parker, Joseph D. |
| author_sort |
Bauer, Eduardo |
| title |
Nonmesonic weak decay spectra of 4/ʌ He |
| title_short |
Nonmesonic weak decay spectra of 4/ʌ He |
| title_full |
Nonmesonic weak decay spectra of 4/ʌ He |
| title_fullStr |
Nonmesonic weak decay spectra of 4/ʌ He |
| title_full_unstemmed |
Nonmesonic weak decay spectra of 4/ʌ He |
| title_sort |
nonmesonic weak decay spectra of 4/ʌ he |
| publishDate |
2009 |
| url |
http://sedici.unlp.edu.ar/handle/10915/129532 |
| work_keys_str_mv |
AT bauereduardo nonmesonicweakdecayspectraof4ʌhe AT galeaoap nonmesonicweakdecayspectraof4ʌhe AT husseinms nonmesonicweakdecayspectraof4ʌhe AT krmpoticfrancisco nonmesonicweakdecayspectraof4ʌhe AT parkerjosephd nonmesonicweakdecayspectraof4ʌhe |
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Repositorios |
| _version_ |
1764820454464290816 |