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New Tests of Perturbative QCD Inspired by Hypothetical Tau Leptons

J. R. Pelaez·S. J. Brodsky·N. Toumbas
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Abstract

Inspired by the relation between the hadronic decay of the tau lepton and the electron-positron annihilation into hadrons, we derive new tests of perturbative QCD. We design a set of commensurate scale relations to test the self-consistency of leading-twist QCD predictions for any observable which defines an effective charge. This method provides renormalization scheme and scale invariant probes of QCD which can be applied over wide data ranges.

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J. R. Pelaez, S. J. Brodsky, N. Toumbas. 1999-05-21. New Tests of Perturbative QCD Inspired by Hypothetical Tau Leptons. https://arxiv.org/abs/hep-ph/9905435

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