The Question of Low-Lying Intruder States in $^8Be$ and Neighboring Nuclei
| dc.creator | Fayache, M. S. | |
| dc.creator | de Guerra, E. Moya | |
| dc.creator | Sarriguren, P. | |
| dc.creator | Sharon, Y. Y. | |
| dc.creator | Zamick, L. | |
| dc.date | 1997-10-24 | |
| dc.date | 1998-03-04 | |
| dc.date.accessioned | 2026-07-07T11:11:25Z | |
| dc.date.available | 2026-07-07T11:11:25Z | |
| dc.description | The presence of not yet detected intruder states in $^{8}Be$ e.g. a $J=2^{+}$ intruder at 9 $MeV$ excitation would affect the shape of the $β^{\mp }$-delayed alpha spectra of $^{8}Li$ and $^{8}B$. In order to test the plausibility of this assumption, shell model calculations with up to $4\hbar ω$ excitations in $^{8}Be$ (and up to $2\hbar ω$ excitations in $^{10}Be$) were performed. With the above restrictions on the model spaces, the calculations did not yield any low-lying intruder state in $^{8}Be$. Another approach -the simple deformed oscillator model with self-consistent frequencies and volume conservation gives an intruder state in $^{8}Be$ which is lower in energy than the above shell model results, but its energy is still considerably higher than 9 $MeV$. | |
| dc.description | 16 pages (RevTeX), 1 PS figure. To appear in Phys. Rev. C | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9710056 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9710056 | |
| dc.identifier | Phys.Rev.C57:2351-2358,1998 | |
| dc.identifier | doi:10.1103/PhysRevC.57.2351 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/191087 | |
| dc.subject | Nuclear Theory | |
| dc.title | The Question of Low-Lying Intruder States in $^8Be$ and Neighboring Nuclei | |
| dc.type | text |