dorsal/arxiv
View SchemaThe energies and residues of the nucleon resonances N(1535) and N(1650)
| Authors | R. A. Arndt, A. M. Green, R. L. Workman, S. Wycech |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807009 |
| URL | https://arxiv.org/abs/nucl-th/9807009 |
| DOI | 10.1103/PhysRevC.58.3636 |
| Journal | Phys.Rev.C58:3636-3640,1998 |
Abstract
We extract pole positions for the N(1535) and N(1650) resonances using two different models. The positions are determined from fits to different subsets of the existing $\pi N\to\pi N$, $\pi N\to\eta N$ and $\gamma p\to\eta p$ data and found to be 1515(10)--i85(15)MeV and 1660(10)--i65(10)MeV, when the data is described in terms of two poles. Sensitivity to the choice of fitted data is explored. The corresponding $\pi \pi$ and $\eta \eta$ residues of these poles are also extracted.
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"abstract": "We extract pole positions for the N(1535) and N(1650) resonances using two\ndifferent models. The positions are determined from fits to different subsets\nof the existing $\\pi N\\to\\pi N$, $\\pi N\\to\\eta N$ and $\\gamma p\\to\\eta p$ data\nand found to be 1515(10)--i85(15)MeV and 1660(10)--i65(10)MeV, when the data is\ndescribed in terms of two poles. Sensitivity to the choice of fitted data is\nexplored. The corresponding $\\pi \\pi$ and $\\eta \\eta$ residues of these poles\nare also extracted.",
"arxiv_id": "nucl-th/9807009",
"authors": [
"R. A. Arndt",
"A. M. Green",
"R. L. Workman",
"S. Wycech"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.58.3636",
"journal_ref": "Phys.Rev.C58:3636-3640,1998",
"title": "The energies and residues of the nucleon resonances N(1535) and N(1650)",
"url": "https://arxiv.org/abs/nucl-th/9807009"
},
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