dorsal/arxiv
View SchemaA dynamical model for correlated two-pion-exchange in the pion-nucleon interaction
| Authors | C. Schütz, J. W. Durso, K. Holinde, B. C. Pearce, J. Speth |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9411022 |
| URL | https://arxiv.org/abs/nucl-th/9411022 |
| DOI | 10.1103/PhysRevC.51.1374 |
| Journal | Phys.Rev.C51:1374-1383,1995 |
Abstract
A microscopic model for the $N\bar N\to\pi\pi$ process is presented in the meson exchange framework, which in the pseudophysical region agrees with available quasiempirical information. The scalar ($\sigma$) and vector ($\rho$) piece of correlated two--pion exchange in the pion--nucleon interaction is then derived via dispersion integrals over the unitarity cut. Inherent ambiguities in the method and implications for the description of pion--nucleon scattering data are discussed.
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"abstract": "A microscopic model for the $N\\bar N\\to\\pi\\pi$ process is presented in the\nmeson exchange framework, which in the pseudophysical region agrees with\navailable quasiempirical information. The scalar ($\\sigma$) and vector ($\\rho$)\npiece of correlated two--pion exchange in the pion--nucleon interaction is then\nderived via dispersion integrals over the unitarity cut. Inherent ambiguities\nin the method and implications for the description of pion--nucleon scattering\ndata are discussed.",
"arxiv_id": "nucl-th/9411022",
"authors": [
"C. Sch\u00fctz",
"J. W. Durso",
"K. Holinde",
"B. C. Pearce",
"J. Speth"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.51.1374",
"journal_ref": "Phys.Rev.C51:1374-1383,1995",
"title": "A dynamical model for correlated two-pion-exchange in the pion-nucleon interaction",
"url": "https://arxiv.org/abs/nucl-th/9411022"
},
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