Application of the Principle of Maximum Conformality to the Top-Quark Charge Asymmetry at the LHC

Understand

The Principle of Maximum Conformality (PMC) provides a systematic and process-independent method to derive renormalization scheme- and scale- independent fixed-order pQCD predictions.

• In Ref.\cite{pmc3}, we studied the top-quark charge asymmetry at the Tevatron.
• By applying the PMC, we have shown that the large discrepancies for the top-quark charge asymmetry between the Standard Model estimate and the CDF and D0 data are greatly reduced.
• In the present paper, with the help of the Bernreuther-Si program, we present a detailed PMC analysis on the top-quark pair production up to next-to-next-to-leading order level at the LHC.