Abstract
Color-magnetic interaction with a smearing function found from the fit to the ρ-π splitting is strong enough to support a bound state of a single\(q\bar q\) pair. We present some piloting calculations in order to illustrate the eigenenergy dependence on the cutoff parameter for different choices of the smearing function. In the threequark system the spin-spin interaction can lead to the existence of the short-range correlations in each1 S o qq subsystem, thereby providing the dynamical mechanism for the quark-diquark picture of the proton.
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Narodetskii, I.M., Simonov, Y.A. & Yurov, V.P. Does color-magnetic interaction induce short-range diquark correlations in the proton?. Z. Phys. C - Particles and Fields 55, 695–700 (1992). https://doi.org/10.1007/BF01561308
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DOI: https://doi.org/10.1007/BF01561308