Article ID Journal Published Year Pages File Type
1842010 Nuclear Physics B 2014 36 Pages PDF
Abstract

We derive a full formula for the energy level of a heavy quarkonium state identified by the quantum numbers n, ℓ, s and j  , up to O(αs5m) and O(αs5mlog⁡αs) in perturbative QCD. The QCD Bethe logarithm is given in a one-parameter integral form. The rest of the formula is given as a combination of rational numbers, transcendental numbers (π  , ζ(3)ζ(3), ζ(5)ζ(5)) and finite sums (besides the 3-loop constant a¯3 of the static potential whose full analytic form is still unknown). A derivation of the formula is given.

Related Topics
Physical Sciences and Engineering Mathematics Mathematical Physics
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