Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-04-05
Nucl.Phys. A710 (2002) 55-82
Physics
Nuclear Physics
Nuclear Theory
29 pages, LateX, 11 figures
Scientific paper
10.1016/S0375-9474(02)01091-6
Expression of the nucleon-nucleon Interaction to order $1/N_C$ in terms of Fermi Invariants allows a dynamical interpretation of the interaction and leads to a consistent construction of the associated interaction currents to order $1/N_C$. The numerically significant components of 4 different modern realistic phenomenological interaction models are shown to admit very similar meson exchange interpretations in the large $N_C$ limit. Moreover 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 300:5-10:0.1, 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 $N_C=3$. The $N_C$ dependence of the electromagnetic and axial interaction currents that are associated with these interaction components is derived and compared to that of the corresponding single nucleon currents.
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