dorsal/arxiv
View SchemaThe Pion-Nucleon coupling constant from np charge exchange scattering
| Authors | B. Loiseau, T. E. O. Ericson, J. Rahm, J. Blomgren, N. Olsson |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9804019 |
| URL | https://arxiv.org/abs/nucl-th/9804019 |
| Journal | Invited Talk at The Seventh International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon, Vancouver, British Columbia, Canada, July 28 -August 1, 1997, piN-Newsletter 13, Editors D. Drechsel et al., p. 117, TRIUMF Report TRI-97-1 |
Abstract
A novel extrapolation method has been used to deduce the charged Pion-Nucleon coupling constant from backward $np$ differential scattering cross sections. We applied it to new measurements performed at 162 MeV at the The Svedberg Laboratory in Uppsala. In the angular range $150^\circ-180^\circ$, the carefully normalized data are steeper than those of most previous measurements. The extracted value, $g^2_{\pi^\pm} = 14.52 \pm 0.26$, in good agreement with the classical value, is higher than those determined in recent nucleon-nucleon partial-wave analyses.
{
"annotation_id": "e8abd7ea-177d-4f6f-ab27-81f8bd742a3e",
"date_created": "2026-03-02T18:00:22.458000Z",
"date_modified": "2026-03-02T18:00:22.458000Z",
"file_hash": "4f43b4bd70c35f95d27ddb7d3a7a6b3a328e3bdb80097bf8fe606fb6cc7217bb",
"private": false,
"record": {
"abstract": "A novel extrapolation method has been used to deduce the charged Pion-Nucleon\ncoupling constant from backward $np$ differential scattering cross sections. We\napplied it to new measurements performed at 162 MeV at the The Svedberg\nLaboratory in Uppsala. In the angular range $150^\\circ-180^\\circ$, the\ncarefully normalized data are steeper than those of most previous measurements.\nThe extracted value, $g^2_{\\pi^\\pm} = 14.52 \\pm 0.26$, in good agreement with\nthe classical value, is higher than those determined in recent nucleon-nucleon\npartial-wave analyses.",
"arxiv_id": "nucl-th/9804019",
"authors": [
"B. Loiseau",
"T. E. O. Ericson",
"J. Rahm",
"J. Blomgren",
"N. Olsson"
],
"categories": [
"nucl-th"
],
"journal_ref": "Invited Talk at The Seventh International Symposium on\n Meson-Nucleon Physics and the Structure of the Nucleon, Vancouver, British\n Columbia, Canada, July 28 -August 1, 1997, piN-Newsletter 13, Editors D.\n Drechsel et al., p. 117, TRIUMF Report TRI-97-1",
"title": "The Pion-Nucleon coupling constant from np charge exchange scattering",
"url": "https://arxiv.org/abs/nucl-th/9804019"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "162a5228-1ea1-4ce4-a063-b4d1e1d28dcd",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}