dorsal/arxiv
View SchemaPion re-scattering operator in the S-matrix approach
| Authors | V. Malafaia, J. Adam Jr, M. T. Pena |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0411049 |
| URL | https://arxiv.org/abs/nucl-th/0411049 |
| DOI | 10.1103/PhysRevC.71.034002 |
| Journal | Phys.Rev. C71 (2005) 034002 |
Abstract
The pion re-scattering operator for pion production, derived recently in time-ordered perturbation theory, is compared with the one following from the simple S-matrix construction. We show that this construction is equivalent to the on-shell approximation introduced in previous papers. For a realistic NN interaction, the S-matrix approach, and its simplified fixed threshold-kinematics version, work well near threshold.
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"abstract": "The pion re-scattering operator for pion production, derived recently in\ntime-ordered perturbation theory, is compared with the one following from the\nsimple S-matrix construction. We show that this construction is equivalent to\nthe on-shell approximation introduced in previous papers. For a realistic NN\ninteraction, the S-matrix approach, and its simplified fixed\nthreshold-kinematics version, work well near threshold.",
"arxiv_id": "nucl-th/0411049",
"authors": [
"V. Malafaia",
"J. Adam Jr",
"M. T. Pena"
],
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"doi": "10.1103/PhysRevC.71.034002",
"journal_ref": "Phys.Rev. C71 (2005) 034002",
"title": "Pion re-scattering operator in the S-matrix approach",
"url": "https://arxiv.org/abs/nucl-th/0411049"
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