dorsal/arxiv
View SchemaPhotoabsorption in nuclei
| Authors | M. Effenberger, U. Mosel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9707010 |
| URL | https://arxiv.org/abs/nucl-th/9707010 |
Abstract
We calculate the total photoabsorption cross section and cross sections for inclusive pion and eta photoproduction in nuclei in the energy range from 300 MeV to 1 GeV within the framework of a semi-classical BUU transport model. Besides medium modifications like Fermi motion and Pauli blocking we focus on the collision broadening of the involved resonances. The resonance contributions to the elementary cross section are fixed by fits to partial wave amplitudes of pion photoproduction. The cross sections for $NR \to NN$, needed for the calculation of collision broadening, are obtained by detailed balance from a fit to $NN \to NN\pi$ cross sections. We show that a reasonable collision broadening is not able to explain the experimentally observed disappearance of the $D_{13}$(1520)-resonance in the photoabsorption cross section on nuclei.
{
"annotation_id": "ba97e058-3519-4c89-a74c-a3042f4c0006",
"date_created": "2026-03-02T18:00:18.799000Z",
"date_modified": "2026-03-02T18:00:18.799000Z",
"file_hash": "a4dcd58ab71f73e00eb240e4d8b3266060adf9d3e4394a5de0de1a7f5a975eca",
"private": false,
"record": {
"abstract": "We calculate the total photoabsorption cross section and cross sections for\ninclusive pion and eta photoproduction in nuclei in the energy range from 300\nMeV to 1 GeV within the framework of a semi-classical BUU transport model.\nBesides medium modifications like Fermi motion and Pauli blocking we focus on\nthe collision broadening of the involved resonances. The resonance\ncontributions to the elementary cross section are fixed by fits to partial wave\namplitudes of pion photoproduction. The cross sections for $NR \\to NN$, needed\nfor the calculation of collision broadening, are obtained by detailed balance\nfrom a fit to $NN \\to NN\\pi$ cross sections. We show that a reasonable\ncollision broadening is not able to explain the experimentally observed\ndisappearance of the $D_{13}$(1520)-resonance in the photoabsorption cross\nsection on nuclei.",
"arxiv_id": "nucl-th/9707010",
"authors": [
"M. Effenberger",
"U. Mosel"
],
"categories": [
"nucl-th"
],
"title": "Photoabsorption in nuclei",
"url": "https://arxiv.org/abs/nucl-th/9707010"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "b6beadfb-5b1c-48e6-a257-724b88f3dd18",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}