This title appears in the Scientific Report : 2000 

Nuclear forces from chiral Lagrangians using the method of unitary transformation (II) : the two-nucleon system
Epelbaum, E.
Glöckle, W. / Meissner, U.G.
Institut für Kernphysik; IKP
Nuclear physics / A, 671 (2000) S. 295
Amsterdam North-Holland Publ. Co. 2000
295
Journal Article
Theoretische Kernphysik
Nuclear Physics A 671
J
We employ the chiral nucleon-nucleon potential derived in [Nucl. Phys. A 637 (1998) 107] 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. (C) 2000 Elsevier Science B.V. All rights reserved.