The Three nucleon and four nucleon systems from chiral effective field theory
Jul, 2000
Citations per year
Abstract:
Recently developed chiral nucleon-nucleon (NN) forces at next-to-leading order (NLO) that describe NN phase shifts up to about 100 MeV fairly well have been applied to 3N and 4N systems. Faddeev-Yakubovsky equations have been solved rigorously. The chiral NLO forces depend on a momentum cut-off \Lambda lying between 540-600 MeV/c. The resulting 3N and 4N binding energies are in the same range as found using standard NN potentials. In additon, low-energy 3N scattering observables are very well reproduced like for standard NN forces. Surprisingly, the long standing A_y-puzzle is resolved at NLO. The cut-off dependence of the scattering observables is rather mild.Note:
- 4 pp, revtex, 3 figures
- nucleon nucleon: interaction
- symmetry: chiral
- bound state: (3nucleon)
- bound state: (4nucleon)
- binding energy
- partial wave
- nucleon deuteron: elastic scattering
- total cross section: energy dependence
- effective potential
- analyzing power
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