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arXiv · hep-lat/9809011

Constituent Quarks, Diquarks and the N-Delta Mass Splitting

F. Karsch·M. Hess·E. Laermann·I. Wetzorke
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Abstract

We analyze hadron as well as quark and diquark correlation functions in Landau gauge in order to extract information on the spin dependence of the quark-quark interaction. We find evidence that the N-Delta mass splitting can be attributed to the spin dependence of the interaction between quarks in a colour anti-triplet state with spin 0 and 1, respectively. The lightest excitations are observed in the S=0 channel. However, no evidence for a deeply bound diquark state is found.

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F. Karsch, M. Hess, E. Laermann, I. Wetzorke. 1998-09-03. Constituent Quarks, Diquarks and the N-Delta Mass Splitting. https://doi.org/10.1016/s0920-5632(99)85026-9

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