Short-range three-nucleon forces and low-energy constants
arXiv:nucl-th/0308032 · doi:10.1103/PhysRevC.69.034008
Abstract
The 3N forces due to pi-rho, pi-sigma and pi-omega exchanges following from the nucleon Born diagrams and diagrams with an intermediate N^{*}(1440) are re-analyzed. The cancellation between pi-sigma and pi-omega forces is rather sensitive to the values of the coupling constants and to the form of the piNN vertex. Experimental uncertainties in the parameters of the TM pi-pi potential are assessed. They lead to uncertainties in theoretical predictions of the triton binding energy of about 0.4 MeV. The low-energy limit of pi-sigma and pi-omega potentials is performed. It defines the coupling constants of effective contact piNNNN vertices, which are compared with the corresponding contact vertices of Chiral Perturbation Theory.
41 pages, 3 figures (4 *.eps files)
References in corpus (1)
Cited by in corpus (5)
- Local three-nucleon interaction from chiral effective field theory
- Signatures of three-nucleon interactions in few-nucleon systems
- Three-Nucleon Bound State in a Spin-Isospin Dependent Three Dimensional Approach
- Nucleon effective mass in hot dense matter
- Short-range Three-Nucleon Forces Effects on Nucleon-Deuteron Scattering