Elsevier

Nuclear Physics A

Volume 439, Issue 4, 24 June 1985, Pages 648-668
Nuclear Physics A

Quark-exchange effects in the three- and four-nucleon systems

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Abstract

The quark-exchange forces in the three- and four-nucleon systems are evaluated in the context of a QCD-like potential model. As in the two-nucleon system the two-body-exchange color hyperfine interaction is found to be strongly repulsive. Additional effects due to the delocalization of quarks over three or four nucleons are investigated and found to produce small but non-negligible effects on binding energies, effects whose magnitudes, however, are shown to be sensitive to poorly known details of the short-distance features of the nuclear wave functions.

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    This work was supported in part by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Division of High Energy Physics of the US Department of Energy under contract DE-AC03-76SF00098.

    Participating guest at Lawrence Berkeley Laboratory.

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