Quarkonia in Hamiltonian Light-Front QCD
Martina M. Brisudova, Robert J. Perry, Kenneth G. Wilson
Abstract
A constituent parton picture of hadrons with logarithmic confinement naturally arises in weak coupling light-front QCD. Confinement provides a mass gap that allows the constituent picture to emerge. The effective renormalized Hamiltonian is computed to O(g2), and used to study charmonium and bottomonium. Radial and angular excitations can be used to fix the coupling α, the quark mass M, and the cutoff Λ. The resultant hyperfine structure is very close to experiment.
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