2000/06/22 by C. Hanhart
Physics and Astronomy · #nucl-th
published as Acta Phys.Polon. B31 (2000) 2213-2217 · 4 pages, 3 figures, Contribution to "MESON2000", Workshop on production, properties and interaction of mesons, Cracow, Poland, 19-23 May 2000
arxiv created 2000/06/22 · arxiv updated 2009/12/01
Based on a counting scheme for the application of chiral perturbation theory to pion production in NN collisions p-wave production is studied. It is demonstrated that, contrary to the s-wave production where loops enter at too low an order to allow the scheme predictive power, there are certain p-wave observables where parameter free predictions are possible. These predictions are consistent with experimental data. We show that the investigation of charged pion production yields a constraint on a contribution to the three-nucleon force with a spin-isospin structure that could resolve the Ay puzzle in nd scattering.