dorsal/arxiv
View SchemaCoherent $\eta$-photoproduction on $^4$He and $^{12}$C in the near-threshold region
| Authors | A. Fix, H. Arenhoevel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9703002 |
| URL | https://arxiv.org/abs/nucl-th/9703002 |
| DOI | 10.1016/S0375-9474(97)00179-6 |
| Journal | Nucl.Phys. A620 (1997) 457-474 |
Abstract
Coherent $\eta$ meson photoproduction on $^4$He and $^{12}$C is considered in the near-threshold region. The elementary $\eta$ photoproduction operator includes contributions from the $S_{11}(1535)$ and $D_{13}(1520)$ resonances as well as $t$-channel vector meson exchange and the nucleon pole terms. Due to the suppression of the dominant $S_{11}(1535)$ resonance for spin and isospin saturated nuclei, the reaction is mainly governed by $\omega$ exchange. Furthermore, the influence of Fermi motion and of different prescriptions for the choice of the invariant reaction energy $W_{\gamma N}$ in the elementary amplitude is studied.
{
"annotation_id": "288785ce-fad1-4b54-b29a-8cb27dd96175",
"date_created": "2026-03-02T18:00:18.735000Z",
"date_modified": "2026-03-02T18:00:18.735000Z",
"file_hash": "252d2d573144150bf8d3183954f066251d031aaf3b5c3902c1d2c828bf18f1e5",
"private": false,
"record": {
"abstract": "Coherent $\\eta$ meson photoproduction on $^4$He and $^{12}$C is considered in\nthe near-threshold region. The elementary $\\eta$ photoproduction operator\nincludes contributions from the $S_{11}(1535)$ and $D_{13}(1520)$ resonances as\nwell as $t$-channel vector meson exchange and the nucleon pole terms. Due to\nthe suppression of the dominant $S_{11}(1535)$ resonance for spin and isospin\nsaturated nuclei, the reaction is mainly governed by $\\omega$ exchange.\nFurthermore, the influence of Fermi motion and of different prescriptions for\nthe choice of the invariant reaction energy $W_{\\gamma N}$ in the elementary\namplitude is studied.",
"arxiv_id": "nucl-th/9703002",
"authors": [
"A. Fix",
"H. Arenhoevel"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(97)00179-6",
"journal_ref": "Nucl.Phys. A620 (1997) 457-474",
"title": "Coherent $\\eta$-photoproduction on $^4$He and $^{12}$C in the near-threshold region",
"url": "https://arxiv.org/abs/nucl-th/9703002"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "62e6ced7-dd21-4ec8-b24a-4087d0995a83",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}