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Diquark correlations in baryons on the lattice with overlap quarks

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arxiv hep-lat/0701023 v2 pith:DGT5JY2F submitted 2007-01-26 hep-lat

Ronald Babich (Boston University) , Nicolas Garron (DESY Zeuthen) , Christian Hoelbling (Universitaet Wuppertal) , Joseph Howard (Boston University) , Laurent Lellouch (CPT Marseille) , Claudio Rebbi (Boston University) This is my paper · ORCID
classification hep-lat
keywords diquarkgaugebaryonlandaulatticeoverlapquarkbaryons
verification ladder T0 review T1 audit T2 compute T3 formal
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We evaluate baryon wave functions in both the Coulomb and Landau gauge in lattice QCD. These are constructed from quark propagators calculated with the overlap Dirac operator on quenched gauge configurations at beta = 6. By comparing baryon states that differ in their diquark content, we find evidence for enhanced correlation in the scalar diquark channel, as favored by quark models. We also summarize earlier results for diquark masses in the Landau gauge, casting them in a form more easily compared with subsequent studies.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Hidden-Strangeness Tetraquarks in the Dynamical Diquark Model

    hep-ph 2025-05 conditional novelty 6.0 of 10

    The dynamical diquark model predicts specific hidden-strangeness tetraquark multiplets near 2-3 GeV, with a distinctive three-state S-wave fingerprint in the ssss sector and several observed resonances as candidate matches.

  2. Scalar diquark mass and quark--diquark potential from lattice QCD using the potential method with a static quark

    hep-lat 2026-06 unverdicted novelty 5.0 of 10

    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 ...

  3. Chiral effective theory of scalar and vector diquarks revisited

    hep-ph 2024-11 conditional novelty 5.0 of 10

    A new term in the chiral diquark Lagrangian is shown to control the mass ordering of pseudoscalar diquarks and to set the threshold at which heavy-baryon decays turn off under chiral restoration.

  4. Lattice perspectives on doubly heavy tetraquarks

    hep-lat 2025-02 accept novelty 1.0 of 10

    A review of lattice QCD results concludes that doubly heavy tetraquarks Tbb(ud/us) are firmly predicted as bound states, Tcc appears as a virtual state at nonphysical masses, and Tbc is under active study.

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