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

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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 $ψ$- and $Υ$-families.
Preprint IHEP 94-74, LATEX, 12 pages

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High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/45227

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/9407373
 http://arxiv.org/abs/hep-ph/9407373

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arXiv