dorsal/arxiv
View SchemaUnbound exotic nuclei studied by projectile fragmentation
| Authors | G. Blanchon, A. Bonaccorso, D. M. Brink, A. García-Camacho, N. Vinh Mau |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0611049 |
| URL | https://arxiv.org/abs/nucl-th/0611049 |
| DOI | 10.1016/j.nuclphysa.2006.11.033 |
| Journal | Nucl.Phys.A784:49-78,2007 |
Abstract
We present a simple time dependent model for the excitation of a nucleon from a bound state to a continuum resonant state in a neutron-core complex potential which acts as a final state interaction. The final state is described by an optical model S-matrix so that both resonant and non resonant states of any continuum energy can be studied as well as deeply bound initial states. It is shown that, due to the coupling between the initial and final states, the neutron-core free particle phase shifts are modified, in the exit channel, by an additional phase. The effect of the additional phase on the breakup spectra is clarified. As an example the population of the low energy resonances of $^{11}$Be and of the unbound $^{13}$Be is discussed. Finally, we suggest that the excitation energy spectra of an unbound nucleus might reflect the structure of the parent nucleus from whose fragmentation they are obtained.
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"abstract": "We present a simple time dependent model for the excitation of a nucleon from\na bound state to a continuum resonant state in a neutron-core complex potential\nwhich acts as a final state interaction.\n The final state is described by an optical model S-matrix so that both\nresonant and non resonant states of any continuum energy can be studied as well\nas deeply bound initial states. It is shown that, due to the coupling between\nthe initial and final states, the neutron-core free particle phase shifts are\nmodified, in the exit channel, by an additional phase. The effect of the\nadditional phase on the breakup spectra is clarified. As an example the\npopulation of the low energy resonances of $^{11}$Be and of the unbound\n$^{13}$Be is discussed. Finally, we suggest that the excitation energy spectra\nof an unbound nucleus might reflect the structure of the parent nucleus from\nwhose fragmentation they are obtained.",
"arxiv_id": "nucl-th/0611049",
"authors": [
"G. Blanchon",
"A. Bonaccorso",
"D. M. Brink",
"A. Garc\u00eda-Camacho",
"N. Vinh Mau"
],
"categories": [
"nucl-th",
"nucl-ex"
],
"doi": "10.1016/j.nuclphysa.2006.11.033",
"journal_ref": "Nucl.Phys.A784:49-78,2007",
"title": "Unbound exotic nuclei studied by projectile fragmentation",
"url": "https://arxiv.org/abs/nucl-th/0611049"
},
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