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arXiv · hep-ph/9805280

The $π-$Gluon Exchange Interaction Between Constituent Quarks

C. Helminen·D. O. Riska
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Abstract

The interaction mediated by irreducible pion and gluon exchange between constituent quarks is calculated and shown to have a strong tensor component, which tends to cancel the pion exchange tensor interaction between quarks. Its spin-spin component is somewhat weaker than the pion exchange spin-spin interaction, while its central and spin-orbit components are small in comparison to the corresponding single gluon exchange interactions. The combination of the $π-$gluon exchange interaction with the single pion exchange interaction and a weak gluon exchange interaction between constituent quarks has the qualitative features required for understanding the hyperfine splittings of the spectra of the nucleon and the $Δ$ resonances.

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C. Helminen, D. O. Riska. 1998-05-11. The $π-$Gluon Exchange Interaction Between Constituent Quarks. https://doi.org/10.1103/physrevc.58.2928

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