dorsal/arxiv
View SchemaElectromagnetic form factors of the nucleon in chiral perturbation theory including vector mesons
| Authors | Matthias R. Schindler, Jambul Gegelia, Stefan Scherer |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0509005 |
| URL | https://arxiv.org/abs/nucl-th/0509005 |
| DOI | 10.1140/epja/i2005-10145-8 |
| Journal | Eur.Phys.J. A26 (2005) 1-5 |
Abstract
We calculate the electromagnetic form factors of the nucleon up to fourth order in manifestly Lorentz-invariant chiral perturbation theory with vector mesons as explicit degrees of freedom. A systematic power counting for the renormalized diagrams is implemented using both the extended on-mass-shell renormalization scheme and the reformulated version of infrared regularization. We analyze the electric and magnetic Sachs form factors, $G_E$ and $G_M$, and compare our results with the existing data. The inclusion of vector mesons results in a considerably improved description of the form factors. We observe that the most dominant contributions come from tree-level diagrams, while loop corrections with internal vector meson lines are small.
{
"annotation_id": "1d79b7d8-0869-44c4-bf1b-fd834f2b4cea",
"date_created": "2026-03-02T18:00:04.388000Z",
"date_modified": "2026-03-02T18:00:04.388000Z",
"file_hash": "deadb7fd20a041e02aee3fb0545a93f0ca6accd92bfc98357ac5c6fbf036621a",
"private": false,
"record": {
"abstract": "We calculate the electromagnetic form factors of the nucleon up to fourth\norder in manifestly Lorentz-invariant chiral perturbation theory with vector\nmesons as explicit degrees of freedom. A systematic power counting for the\nrenormalized diagrams is implemented using both the extended on-mass-shell\nrenormalization scheme and the reformulated version of infrared regularization.\nWe analyze the electric and magnetic Sachs form factors, $G_E$ and $G_M$, and\ncompare our results with the existing data. The inclusion of vector mesons\nresults in a considerably improved description of the form factors. We observe\nthat the most dominant contributions come from tree-level diagrams, while loop\ncorrections with internal vector meson lines are small.",
"arxiv_id": "nucl-th/0509005",
"authors": [
"Matthias R. Schindler",
"Jambul Gegelia",
"Stefan Scherer"
],
"categories": [
"nucl-th",
"hep-ph",
"nucl-ex"
],
"doi": "10.1140/epja/i2005-10145-8",
"journal_ref": "Eur.Phys.J. A26 (2005) 1-5",
"title": "Electromagnetic form factors of the nucleon in chiral perturbation theory including vector mesons",
"url": "https://arxiv.org/abs/nucl-th/0509005"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "e8b705e7-cce7-4c38-818b-967253dbe5d7",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}