dorsal/arxiv
View Schemapp <-> pi+ d process at low energy: Interplay between s-- and p-wave mechanisms
| Authors | L. Canton, A. Davini, P. J. Dortmans |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9801028 |
| URL | https://arxiv.org/abs/nucl-th/9801028 |
| DOI | 10.1103/PhysRevC.58.1929 |
| Journal | Phys.Rev.C58:1929-1936,1998 |
Abstract
The large variety of experimental data around the pion-production threshold are compared with a meson-exchange isobar model which includes the pion-nucleon interaction in s-- and p-waves. Theoretical results obtained with two different NN potentials (Bonn and Paris) indicate that the behavior of the excitation function at threshold is sensitive to the details of the NN correlations. The complete model presented, while developed originally to reproduce the reaction around the Delta resonance, is shown to describe well the integral (Coulomb-corrected) cross-section at threshold along with its angular distribution. At low energies the angular dependence of the analyzing power Ay0 is well reproduced also. Finally, the energy dependence of the analyzing power for theta=90 from threshold up to the Delta resonance is considered and discussed.
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"abstract": "The large variety of experimental data around the pion-production threshold\nare compared with a meson-exchange isobar model which includes the pion-nucleon\ninteraction in s-- and p-waves. Theoretical results obtained with two different\nNN potentials (Bonn and Paris) indicate that the behavior of the excitation\nfunction at threshold is sensitive to the details of the NN correlations. The\ncomplete model presented, while developed originally to reproduce the reaction\naround the Delta resonance, is shown to describe well the integral\n(Coulomb-corrected) cross-section at threshold along with its angular\ndistribution. At low energies the angular dependence of the analyzing power Ay0\nis well reproduced also. Finally, the energy dependence of the analyzing power\nfor theta=90 from threshold up to the Delta resonance is considered and\ndiscussed.",
"arxiv_id": "nucl-th/9801028",
"authors": [
"L. Canton",
"A. Davini",
"P. J. Dortmans"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.58.1929",
"journal_ref": "Phys.Rev.C58:1929-1936,1998",
"title": "pp \u003c-\u003e pi+ d process at low energy: Interplay between s-- and p-wave mechanisms",
"url": "https://arxiv.org/abs/nucl-th/9801028"
},
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