Nuclear forces and currents in large-N C QCD
Helsinki Institute of Physics and Department of Physical Sciences, University of Helsinki, 00014, Finland
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Expression of the nucleon-nucleon interaction to leading order in 1/N C in terms of Fermi invariants allows a dynamical interpretation of the interaction and a consistent construction of the associated interaction currents. The numerically significant components of 4 different modern realistic phenomenological interaction models admit very similar meson exchange interpretations in the large-N C limit. The ratio of the volume integrals of the leading, next-to-leading and next-to-next leading-order terms in these interaction models is roughly , which corresponds fairly well to the ratios of 1/N C 2 between the terms that would be suggested by the 1/N C expansion if N C = 3.
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