https://physicsoverflow.org/35902/even-perturbative-expansion-function-expected-divergent
Is even the perturbative expansion of the QCD beta function expected to be divergent? |...
The usual QCD folklore tells us that perturbative expansions are (at best) asymptotic. Recently a colleague of ... So, is he right? and if so, why?
perturbative expansionbeta functionevenqcdexpected