dorsal/arxiv
View SchemaCentral and tensor components of three-nucleon forces in low-energy proton-deuteron scattering
| Authors | S. Ishikawa, M. Tanifuji, Y. Iseri |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0304070 |
| URL | https://arxiv.org/abs/nucl-th/0304070 |
| DOI | 10.1103/PhysRevC.67.061001 |
| Journal | Phys.Rev. C67 (2003) 061001 |
Abstract
Contributions of three-nucleon forces (3NF) to proton-deuteron scattering observables at energies below the deuteron breakup threshold are studied by solving the Faddeev equation that includes the Coulomb interaction. At E_p=3.0 MeV, we find that the central part of a two-pion exchange 3NF removes the discrepancy between measured cross sections and the calculated ones by two-nucleon forces, and improves the agreement with T_{22} experimental data. However, the tensor part of the 3NF fails in reproducing data of the analyzing power T_{21} by giving worse agreement between the measured and the calculated. Detailed examinations of scattering amplitudes suggest that a P-wave contribution in spin quartet tensor amplitudes has unsuitable sign for reproducing the T_{21} data.
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"abstract": "Contributions of three-nucleon forces (3NF) to proton-deuteron scattering\nobservables at energies below the deuteron breakup threshold are studied by\nsolving the Faddeev equation that includes the Coulomb interaction. At E_p=3.0\nMeV, we find that the central part of a two-pion exchange 3NF removes the\ndiscrepancy between measured cross sections and the calculated ones by\ntwo-nucleon forces, and improves the agreement with T_{22} experimental data.\nHowever, the tensor part of the 3NF fails in reproducing data of the analyzing\npower T_{21} by giving worse agreement between the measured and the calculated.\nDetailed examinations of scattering amplitudes suggest that a P-wave\ncontribution in spin quartet tensor amplitudes has unsuitable sign for\nreproducing the T_{21} data.",
"arxiv_id": "nucl-th/0304070",
"authors": [
"S. Ishikawa",
"M. Tanifuji",
"Y. Iseri"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.67.061001",
"journal_ref": "Phys.Rev. C67 (2003) 061001",
"title": "Central and tensor components of three-nucleon forces in low-energy proton-deuteron scattering",
"url": "https://arxiv.org/abs/nucl-th/0304070"
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