dorsal/arxiv
View SchemaDouble pion photoproduction on nucleon and deuteron
| Authors | A. Fix, H. Arenhoevel |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0503042 |
| URL | https://arxiv.org/abs/nucl-th/0503042 |
| DOI | 10.1140/epja/i2005-10067-5 |
| Journal | Eur.Phys.J. A25 (2005) 115-135 |
Abstract
Photoproduction of two pions on nucleon and deuteron is studied for photon energies from threshold up to $E_\gamma = 1.5$ GeV. For the elementary operator an effective Lagrangean approach is used with resonance and Born contributions. The model parameters are fixed by resonance decay widths and multipole analyses of single pion photoproduction. A satisfactory description of total cross sections of two-pion production on the proton for various charge channels is achieved, except for $\pi^0\pi^0$ production for which a significant underestimation is found near threshold. The operator then serves for the evaluation of this reaction on the deuteron in the impulse approximation. In addition, $NN$ rescattering in the final state is taken into account, but $\pi N$ and $\pi\pi$ rescatterings are neglected. Results are presented for total cross sections and target asymmetries.
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"abstract": "Photoproduction of two pions on nucleon and deuteron is studied for photon\nenergies from threshold up to $E_\\gamma = 1.5$ GeV. For the elementary operator\nan effective Lagrangean approach is used with resonance and Born contributions.\nThe model parameters are fixed by resonance decay widths and multipole analyses\nof single pion photoproduction. A satisfactory description of total cross\nsections of two-pion production on the proton for various charge channels is\nachieved, except for $\\pi^0\\pi^0$ production for which a significant\nunderestimation is found near threshold. The operator then serves for the\nevaluation of this reaction on the deuteron in the impulse approximation. In\naddition, $NN$ rescattering in the final state is taken into account, but $\\pi\nN$ and $\\pi\\pi$ rescatterings are neglected. Results are presented for total\ncross sections and target asymmetries.",
"arxiv_id": "nucl-th/0503042",
"authors": [
"A. Fix",
"H. Arenhoevel"
],
"categories": [
"nucl-th"
],
"doi": "10.1140/epja/i2005-10067-5",
"journal_ref": "Eur.Phys.J. A25 (2005) 115-135",
"title": "Double pion photoproduction on nucleon and deuteron",
"url": "https://arxiv.org/abs/nucl-th/0503042"
},
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