Abstract
We analyze the two-nucleon system below the pion threshold, using a chiral quark cluster model. We solve multichannel resonating group method equations in momentum space, treating them as a set of Lippmann-Schwinger equations. Deuteron data and scattering phase shifts up to a total angular momentum $J=6$ are presented. Full couplings to $N\ensuremath{\Delta}$ and $\ensuremath{\Delta}\ensuremath{\Delta}$ channels are considered and analyzed. High angular momentum partial waves $(Lg2)$ provide a detailed test of chiral symmetry in the two-nucleon system. D waves still show important short-range effects. Low angular momentum partial waves and deuteron observables are in good agreement with the experimental data, showing that the underlying quark structure provides the required short-range potential behavior.
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