dorsal/arxiv
View SchemaReanalysis of antiproton production in proton-nucleus and nucleus-nucleus reactions at subthreshold energies
| Authors | A. Sibirtsev, W. Cassing, G. I. Lykasov, M. V. Rzjanin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9710044 |
| URL | https://arxiv.org/abs/nucl-th/9710044 |
| DOI | 10.1016/S0375-9474(97)00809-9 |
| Journal | Nucl.Phys. A632 (1998) 131-152 |
Abstract
We reanalyse the production of $p\bar{p}$ pairs in proton-nucleus and nucleus-nucleus collisions employing novel elementary cross sections for baryon-baryon and pion-baryon production channels based on a boson-exchange model. In contrast to previous transport studies performed in the literature the secondary pion induced channel is found to be most important in both p+A and A+A collisions at subthreshold energies. A detailed comparison with the experimental data available indicates that sizeable attractive $\bar{p}$ potentials in the order of - 100 to - 150 MeV at normal nuclear matter density are needed to reproduce the size and shape of the experimental spectra.
{
"annotation_id": "6bb32bba-f648-443e-82b0-0335c5613aac",
"date_created": "2026-03-02T18:00:22.300000Z",
"date_modified": "2026-03-02T18:00:22.300000Z",
"file_hash": "30a29e79ffde31847f06e0e379653e5fd7e5abf9183f99c1eef2af572fe2581f",
"private": false,
"record": {
"abstract": "We reanalyse the production of $p\\bar{p}$ pairs in proton-nucleus and\nnucleus-nucleus collisions employing novel elementary cross sections for\nbaryon-baryon and pion-baryon production channels based on a boson-exchange\nmodel. In contrast to previous transport studies performed in the literature\nthe secondary pion induced channel is found to be most important in both p+A\nand A+A collisions at subthreshold energies. A detailed comparison with the\nexperimental data available indicates that sizeable attractive $\\bar{p}$\npotentials in the order of - 100 to - 150 MeV at normal nuclear matter density\nare needed to reproduce the size and shape of the experimental spectra.",
"arxiv_id": "nucl-th/9710044",
"authors": [
"A. Sibirtsev",
"W. Cassing",
"G. I. Lykasov",
"M. V. Rzjanin"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0375-9474(97)00809-9",
"journal_ref": "Nucl.Phys. A632 (1998) 131-152",
"title": "Reanalysis of antiproton production in proton-nucleus and nucleus-nucleus reactions at subthreshold energies",
"url": "https://arxiv.org/abs/nucl-th/9710044"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "bdd2e515-c5a6-404b-9c1b-a4c943cb9695",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}