6533b7d9fe1ef96bd126d687
RESEARCH PRODUCT
Spin-dependent potentials from lattice QCD
Yoshiaki KomaMiho KomaMiho Komasubject
PhysicsNuclear and High Energy PhysicsParticle physicsNuclear TheoryHigh Energy Physics::LatticeLattice field theoryHigh Energy Physics::PhenomenologyHigh Energy Physics - Lattice (hep-lat)FOS: Physical sciencesField strengthLattice QCDQuarkoniumNuclear Theory (nucl-th)High Energy Physics - PhenomenologyHigh Energy Physics - LatticeHamiltonian lattice gauge theoryHigh Energy Physics - Phenomenology (hep-ph)Lattice gauge theoryQuantum electrodynamicsHyperfine structureLattice model (physics)description
The spin-dependent corrections to the static inter-quark potential are phenomenologically relevant to describing the fine and hyperfine spin splitting of the heavy quarkonium spectra. We investigate these corrections, which are represented as the field strength correlators on the quark-antiquark source, in SU(3) lattice gauge theory. We use the Polyakov loop correlation function as the quark-antiquark source, and by employing the multi-level algorithm, we obtain remarkably clean signals for these corrections up to intermediate distances of around 0.6 fm. Our observation suggests several new features of the corrections.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-09-29 |