Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1999-10-26
Nucl.Phys.A671:295-331,2000
Physics
Nuclear Physics
Nuclear Theory
41 pp, LaTeX2e file, 16 figures (uses epsf)
Scientific paper
10.1016/S0375-9474(99)00821-0
We employ the chiral nucleon-nucleon potential derived in ref.[1] to study bound and scattering states in the two-nucleon system. At next-to-leading order, this potential is the sum of renormalized one-pion and two-pion exchange and contact interactions. At next-to-next-to-leading order, we have additional chiral two-pion exchange with low-energy constants determined from pion-nucleon scattering. Alternatively, we consider the \Delta(1232) as an explicit degree of freedom in the effective field theory. The nine parameters related to the contact interactions can be determined by a fit to the np S- and P-waves and the mixing parameter \epsilon_1 for laboratory energies below 100 MeV. The predicted phase shifts and mixing parameters for higher energies and higher angular momenta are mostly well described for energies below 300 MeV. The S-waves are described as precisely as in modern phenomenological potentials. We find a good description of the deuteron properties.
Epelbaum Evgeny
Glockle Walter
Meißner Ulf-G.
No associations
LandOfFree
Nuclear forces from chiral Lagrangians using the method of unitary transformation II: The two-nucleon system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nuclear forces from chiral Lagrangians using the method of unitary transformation II: The two-nucleon system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear forces from chiral Lagrangians using the method of unitary transformation II: The two-nucleon system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-24837