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hep-ph2020★ 4 cited
pQCD running couplings finite and monotonic in the infrared: when do they reflect the holomorphic properties of spacelike observables?
Carlos Contreras, Gorazd Cvetic, Oscar Orellana
We investigate a large class of perturbative QCD (pQCD) renormalization schemes whose beta functions are meromorphic functions of the running coupling and give finite positi…
hep-ph2014★ 10 cited
Perturbative QCD in acceptable schemes with holomorphic coupling
Carlos Contreras, Gorazd Cvetic, Reinhart Kogerler +2
Perturbative QCD in mass independent schemes leads in general to running coupling which is nonanalytic (nonholomorphic) in the regime of low spacelike momenta $|Q^2| \less…