dorsal/arxiv
View SchemaDouble neutral pion photoproduction at threshold
| Authors | V. Bernard, N. Kaiser, Ulf-G. Meißner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9604010 |
| URL | https://arxiv.org/abs/nucl-th/9604010 |
| DOI | 10.1016/0370-2693(96)00646-6 |
| Journal | Phys.Lett. B382 (1996) 19-23 |
Abstract
We consider the chiral expansion of the threshold amplitude for the reaction $\gamma p \to \pi^0 \pi^0 p$ to order ${\cal O}(M_\pi^2)$. We substantiate a claim that this photoproduction channel is significantly enhanced close to threshold due to pion loops. A precise measurement of the corresponding cross sections is called for which allows to test chiral perturbation theory.
{
"annotation_id": "1a43ed32-24ea-43b7-9247-01b16d955c14",
"date_created": "2026-03-02T18:00:15.206000Z",
"date_modified": "2026-03-02T18:00:15.206000Z",
"file_hash": "8b88cdd76e5215ebea8737399e73587aacb777c2165d41fb5904f1eab378242a",
"private": false,
"record": {
"abstract": "We consider the chiral expansion of the threshold amplitude for the reaction\n$\\gamma p \\to \\pi^0 \\pi^0 p$ to order ${\\cal O}(M_\\pi^2)$. We substantiate a\nclaim that this photoproduction channel is significantly enhanced close to\nthreshold due to pion loops. A precise measurement of the corresponding cross\nsections is called for which allows to test chiral perturbation theory.",
"arxiv_id": "nucl-th/9604010",
"authors": [
"V. Bernard",
"N. Kaiser",
"Ulf-G. Mei\u00dfner"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1016/0370-2693(96)00646-6",
"journal_ref": "Phys.Lett. B382 (1996) 19-23",
"title": "Double neutral pion photoproduction at threshold",
"url": "https://arxiv.org/abs/nucl-th/9604010"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "f5e7ea46-e408-4e45-9b1f-7298ed97cd76",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}