Masses of $nS$-wave Heavy Quarkonium Levels from QCD Sum Rules

Details Masses of $nS$-wave Heavy Quarkonium Levels from QCD Sum Rules Masses of $nS$-wave Heavy Quarkonium Levels from QCD Sum Rules

1994-07-26

arxiv.org/abs/hep-ph/9407373v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Preprint IHEP 94-74, LATEX, 12 pages

Scientific paper

Using a specific scheme of the QCD sum rules, one derives an universal
formula for the mass differences for the $nS$-levels of heavy qiarkonium. This
relation does not depend on the flavours of the heavy quarks, composing the
quarkonium, and it is in a good agreement with the experimental mass values for
the $\psi$- and $\Upsilon$-families.

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