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

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45227Using 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 $ψ$- and $Υ$-families.Preprint IHEP 94-74, LATEX, 12 pagesHigh Energy Physics - PhenomenologyMasses of $nS$-wave Heavy Quarkonium Levels from QCD Sum Rulestext