Instanton effects on charmonium states

Abstract

The instanton effects on the charmonium spectrum is discussed in the framework of nonrelativistic potential model. The results from constituent quark model without inclusion of instanton effects is compared with the results for `the potential from constituent quark model + the contribution from the instanton liquid model'. We consider two models with the corresponding instanton potentials and discuss their relevance to explanations of the origin phenomenological parameters used in the nonrelativistic potential models. We also present the universal instanton potential in the parametrized form which can be useful in practical calculations.

8 pages, 1 figure

References in corpus (9)

• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Charmonium
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Quarkonia and their transitions
• A New Hadron Spectroscopy
• Low energy constants of \chiPT from the instanton vacuum model
• 1/N_c corrections to the magnetic susceptibility of the QCD vacuum
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Cited by in corpus (6)

• Lectures on nonperturbative QCD ( Nonperturbative Topological Phenomena in QCD and Related Theories)
• Heavy quark correlators in Instanton Liquid Model with perturbative corrections
• Gluons, Light and Heavy Quarks in the Instanton Vacuum
• Solutions of the bosonic master-field equation from a supersymmetric matrix model
• Test of the nonrelativistic $c\bar{c}$ potential
• Heavy-light quark systems from the QCD instanton vacuum: $N_f=1$ light flavor case