Quarkonia in Hamiltonian Light-Front QCD

Details Quarkonia in Hamiltonian Light-Front QCD Quarkonia in Hamiltonian Light-Front QCD

1996-07-10

arxiv.org/abs/hep-ph/9607280v2

Phys.Rev.Lett. 78 (1997) 1227-1230

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 latex figure included in the text. Published version (much more reader-friendly); corrected error in self-energy

Scientific paper

10.1103/PhysRevLett.78.1227

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 ${\cal O}(g^2)$, and used to study charmonium and bottomonium. Radial and angular excitations can be used to fix the coupling $\alpha$, the quark mass $M$, and the cutoff $\Lambda$. The resultant hyperfine structure is very close to experiment.

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