Using lattice QCD, the scalar diquark mass is found to be close to (2/3) of the nucleon mass, and the quark-diquark potential is of Cornell type with string tension agreeing to within 5% of the static quark-antiquark potential.
Evidence for diquarks in lattice QCD
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
Diquarks may play an important role in hadron spectroscopy, baryon decays and color superconductivity. We investigate the existence of diquark correlations in lattice QCD by considering systematically all the lowest energy diquark channels in a color gauge-invariant setup. We measure mass differences between the various channels and show that the positive parity scalar diquark is the lightest. Quark-quark correlations inside the diquark are clearly seen in this channel, and yield a diquark size of order 1 fm.
years
2026 2verdicts
UNVERDICTED 2representative citing papers
Proposes EIC jet-pion-electron measurements to detect and quantify short-range quark pair correlations in protons, expecting ud pairs to dominate due to diquark attraction.
citing papers explorer
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Scalar diquark mass and quark--diquark potential from lattice QCD using the potential method with a static quark
Using lattice QCD, the scalar diquark mass is found to be close to (2/3) of the nucleon mass, and the quark-diquark potential is of Cornell type with string tension agreeing to within 5% of the static quark-antiquark potential.
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Short-Range Correlations Between Partons in a Proton
Proposes EIC jet-pion-electron measurements to detect and quantify short-range quark pair correlations in protons, expecting ud pairs to dominate due to diquark attraction.