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Observation of String Breaking in QCD

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arxiv hep-lat/0505012 v2 pith:S7QOE65Y submitted 2005-05-13 hep-lat hep-phhep-thnucl-th

Observation of String Breaking in QCD

SESAM Collaboration: Gunnar S. Bali (1) , Hartmut Neff (2) , Thomas Duessel (3) , Thomas Lippert (3) , Klaus Schilling (4) ((1) Glasgow Univ , (2) Boston Univ , (3) FZ Juelich , (4) Wuppertal Univ) This is my paper
classification hep-lat hep-phhep-thnucl-th
keywords stringbreakingstatic-lightabledynamicsimprovinginteractionsinvestigate
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We numerically investigate the transition of the static quark-antiquark string into a static-light meson-antimeson system. Improving noise reduction techniques, we are able to resolve the signature of string breaking dynamics for n_f=2 lattice QCD at zero temperature. This result can be related to properties of quarkonium systems. We also study short-distance interactions between two static-light mesons.

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Forward citations

Cited by 6 Pith papers

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    BOEFT quantifies threshold-induced shifts in quarkonium masses below threshold by solving coupled Schrödinger equations using lattice potentials and one parameter fixed to the χ_c1(3872) mass.

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    hep-lat 2026-07 conditional novelty 6.0

    Direct measurement of chromo-electric flux-tube profiles in lattice QCD with physical quark masses indicates string breaking occurs at a quark-antiquark separation between 0.963 and 1.156 fm.

  3. The Quantum Complexity of String Breaking in the Schwinger Model

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    Quantum complexity measures applied to the Schwinger model reveal nonlocal correlations along the string and show that entanglement and magic give complementary views of string formation and breaking.

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    A radius-dependent chromoelectric interaction in the MIT bag model predicts that the state T_ncs̄n̄(0+, 2.925) is a compact tetraquark candidate corresponding to the experimentally observed T_c̄s0^a(2900).

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