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Constituent Quarks, Diquarks and the N-Delta Mass Splitting

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.

preprint1998arXivOpen access
F. KarschM. HessE. LaermannI. Wetzorke
hep-lat
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Open access4 authors1 topic
Imported metadata coverageMissing code, dataset, citation and institution fields are tracked without dominating the paper.Details
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F. KarschM. HessE. LaermannI. Wetzorke

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