dorsal/arxiv
View SchemaContributions of strange quarks to the magnetic moment of the proton
| Authors | H. -W. Hammer, D. Drechsel, T. Mart |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9701008 |
| URL | https://arxiv.org/abs/nucl-th/9701008 |
Abstract
Using the Gerasimov-Drell-Hearn sum rule and experimental total cross sections for photoproduction of $\eta$, $K$ and $\phi$ mesons on the proton, we obtain upper bounds for the contribution of strange quarks to the anomalous magnetic moment of the proton, $|\kappa_{s}| \le 0.20 \kappa_{p}$. The proposed experiments to measure the spin-dependence of the absorption cross section are expected to lower these bounds considerably. The existing data on $\eta$ production and phenomenological models for $K$ production agree with a negative sign for $\kappa_{s}$.
{
"annotation_id": "2cb873e2-b982-45e7-a0bf-34d39f227d0c",
"date_created": "2026-03-02T18:00:18.509000Z",
"date_modified": "2026-03-02T18:00:18.509000Z",
"file_hash": "702f5c300519a9ae74adff7d34388545eec832dcc4487190bfeb3b3d746c08f8",
"private": false,
"record": {
"abstract": "Using the Gerasimov-Drell-Hearn sum rule and experimental total cross\nsections for photoproduction of $\\eta$, $K$ and $\\phi$ mesons on the proton, we\nobtain upper bounds for the contribution of strange quarks to the anomalous\nmagnetic moment of the proton, $|\\kappa_{s}| \\le 0.20 \\kappa_{p}$. The proposed\nexperiments to measure the spin-dependence of the absorption cross section are\nexpected to lower these bounds considerably. The existing data on $\\eta$\nproduction and phenomenological models for $K$ production agree with a negative\nsign for $\\kappa_{s}$.",
"arxiv_id": "nucl-th/9701008",
"authors": [
"H. -W. Hammer",
"D. Drechsel",
"T. Mart"
],
"categories": [
"nucl-th",
"hep-ph"
],
"title": "Contributions of strange quarks to the magnetic moment of the proton",
"url": "https://arxiv.org/abs/nucl-th/9701008"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8e9518db-09d3-4c9f-908f-0cd2e54a135b",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}