Central and tensor components of three-nucleon forces in low-energy proton-deuteron scattering
arXiv:nucl-th/0304070 · doi:10.1103/PhysRevC.67.061001
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.
arXiv comment6 pages, 6 figures
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Cited by in corpus (6)
- Two-pion exchange three-nucleon potential: O(q^4) chiral expansion
- Coordinate space proton-deuteron scattering calculations including Coulomb force effects
- Spin-dependent three-nucleon force effects on nucleon-deuteron scattering
- Polarization phenomena in hyperon-nucleon scattering
- Short-range Three-Nucleon Forces Effects on Nucleon-Deuteron Scattering
- Transport coefficients of dense nucleon matter at low temperature