Speaker
Description
The renormalization scale setting in QCD is a fundamental problem for high precision tests of the Standard Model (SM). It is considered a conventional practice to set the renormalization scale to the typical scale of a process Q, namely to the momentum transfer and to determine theoretical errors by varying it in a range of two. According to the Conventional Scale Setting (C.S.S.), perturbative QCD ( pQCD) predictions are affected by the renormalization scheme and scale ambiguities. The Principle of Maximum Conformality (PMC) provides a systematic way to remove such ambiguities from perturbative calculations satisfying at once the renormalization group invariance and the self-consistency conditions deriving from the renormalization group. We present here the recent developments and applications of the PMC method also showing the comparison of the results with those obtained with other methods.
