Nucleon-nucleon potential with quark degrees of freedom

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Abstract
Nucleon-nucleon phase shifts for all partial waves, static properties, and electromagnetic form factors of the deuteron are calculated from an NN potential, which has a mesonic sector with only two adjusted parameters and is supplemented by a phenomenological six-quark core potential with a P-matrix-type parametrization. NN phase shifts constrain the six-quark core radius within 1 ≤b≤1.2 fm. The deuteron’s magnetic structure function B agrees with the data only for b=1 fm. The six-quark core probability is about 2.3%.