Chiral 2pi exchange at order four and peripheral NN scattering

Details Chiral 2pi exchange at order four and peripheral NN scattering Chiral 2pi exchange at order four and peripheral NN scattering

2002-02-12

arxiv.org/abs/nucl-th/0202039v1

Phys.Rev. C66 (2002) 014002

Physics

Nuclear Physics

Nuclear Theory

22 pages RevTex including 11 figures

Scientific paper

10.1103/PhysRevC.66.014002

We calculate the impact of the complete set of two-pion exchange contributions at chiral order four (also known as next-to-next-to-next-to-leading order, N3LO) on peripheral partial waves of nucleon-nucleon scattering. Our calculations are based upon the analytical studies by Kaiser. It turns out that the contribution of order four is substantially smaller than the one of order three, indicating convergence of the chiral expansion. We compare the prediction from chiral pion-exchange with the corresponding one from conventional meson-theory as represented by the Bonn Full Model and find, in general, good agreement. Our calculations provide a sound basis for investigating the issue whether the low-energy constants determined from pi-N lead to reasonable predictions for NN.

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