Heavy meson interquark potential
arXiv:1108.2347 · doi:10.1103/PhysRevD.84.114008
Abstract
The resolution of Dyson-Schwinger equations leads to the freezing of the QCD running coupling (effective charge) in the infrared, which is best understood as a dynamical generation of a gluon mass function, giving rise to a momentum dependence which is free from infrared divergences. We calculate the interquark potential for heavy mesons by assuming that it is given by a massive One Gluon Exchange potential and compare with phenomenologyical fits inspired by lattice QCD. We apply these potential forms to the description of quarkonia and conclude that, even though some aspects of the confinement mechanism are absent in the Dyson Schwinger formalism, the results for the spectrum are surprisingly accurate. We discuss explanations for this outcome.
13 pages and 6 figures
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- Dynamics of the quark-antiquark interaction and the universality of Regge trajectories
- How confinement may affect technicolor?
- Confinement, the gluon propagator and the interquark potential for heavy mesons
- Triply-heavy/strange baryons with Cornell potential on a quantum computer
- Excited charmonium states from Bethe-Salpeter equation
- Heavy quark potential from QCD-related effective coupling
- Heavy-quarkonium potential with input from lattice gauge theory
- Multivacuum States in a Fermionic Gap Equation with massive gluons and confinement
- Chiral symmetry breaking with a confining propagator and dynamically massive gluons