dorsal/arxiv
View SchemaCorrelations and the Cross Section of Exclusive ($e,e'p$) Reactions for $^{16}$O
| Authors | K. Amir-Azimi-Nili, J. M. Udias, H. Müther, L. D. Skouras, A. Polls |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9704011 |
| URL | https://arxiv.org/abs/nucl-th/9704011 |
| DOI | 10.1016/S0375-9474(97)00595-2 |
| Journal | Nucl.Phys. A625 (1997) 633-650 |
Abstract
The reduced cross section for exclusive ($e,e'p$) reactions has been studied in DWIA for the example of the nucleus $^{16}$O using a spectral function containing effects of correlations. The spectral function is evaluated directly for the finite nucleus starting from a realistic nucleon-nucleon interaction within the framework of the Green's function approach. The emphasis is focused on the correlations induced by excitation modes at low energies described within a model-space of shell-model configurations including states up to the $sdg$ shell. Cross sections for the $p$-wave quasi-hole transitions at low missing energies are presented and compared with the most recent experimental data. In the case of the so-called perpendicular kinematics the reduced cross section derived in DWIA shows an enhancement at high missing momenta as compared to the PWIA result. Furthermore the cross sections for the $s$- and $d$-wave quasi-hole transitions are presented and compared to available data at low missing momenta. Also in these cases, which cannot be described in a model without correlations, a good agreement with the experiment is obtained.
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"abstract": "The reduced cross section for exclusive ($e,e\u0027p$) reactions has been studied\nin DWIA for the example of the nucleus $^{16}$O using a spectral function\ncontaining effects of correlations. The spectral function is evaluated directly\nfor the finite nucleus starting from a realistic nucleon-nucleon interaction\nwithin the framework of the Green\u0027s function approach. The emphasis is focused\non the correlations induced by excitation modes at low energies described\nwithin a model-space of shell-model configurations including states up to the\n$sdg$ shell. Cross sections for the $p$-wave quasi-hole transitions at low\nmissing energies are presented and compared with the most recent experimental\ndata. In the case of the so-called perpendicular kinematics the reduced cross\nsection derived in DWIA shows an enhancement at high missing momenta as\ncompared to the PWIA result. Furthermore the cross sections for the $s$- and\n$d$-wave quasi-hole transitions are presented and compared to available data at\nlow missing momenta. Also in these cases, which cannot be described in a model\nwithout correlations, a good agreement with the experiment is obtained.",
"arxiv_id": "nucl-th/9704011",
"authors": [
"K. Amir-Azimi-Nili",
"J. M. Udias",
"H. M\u00fcther",
"L. D. Skouras",
"A. Polls"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(97)00595-2",
"journal_ref": "Nucl.Phys. A625 (1997) 633-650",
"title": "Correlations and the Cross Section of Exclusive ($e,e\u0027p$) Reactions for $^{16}$O",
"url": "https://arxiv.org/abs/nucl-th/9704011"
},
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