Good and bad diquark properties and spatial correlations in lattice QCD


  • Anthony Francis CERN
  • Ph. de Forcrand Universitat Bern
  • R. Lewis National Yang Ming Chiao Tung University
  • K. Maltman York University



Diquarks, exotic hadrons, lattice QCD CERN-TH-2021-223


We study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical point, observing agreement with phenomenological expectations. We find that only the good diquark has attractive quark-quark spatial correlations, with spherical shape and size of about 0.6 fm. Our results provide quantitative support for modelling the low-lying baryon spectrum using good light diquark effective degrees of freedom.


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How to Cite

Francis A, de Forcrand P, Lewis R, Maltman K. Good and bad diquark properties and spatial correlations in lattice QCD. Supl. Rev. Mex. Fis. [Internet]. 2022 May 19 [cited 2024 May 20];3(3):0308082 1-5. Available from: