Abstract
We provide the most up-to-date predictions for the top-quark charge asymmetry at the LHC with a center-of-mass energy of 8 TeV. Our result is accurate at the NNLO level in the strong interactions and at the complete-NLO level in both the strong and electroweak interactions. We present results for the inclusive , several differential asymmetries as well as the and cumulative asymmetries. Similarly to the Tevatron forward-backward asymmetry , both NNLO QCD and NLO EW corrections to are found to be significant. The inclusion of higher-order corrections reduces the residual scale dependence in the predicted . The pattern of higher-order corrections indicates good perturbative control over these observables. We conclude that at present there is nearly uniform agreement between standard model predictions and LHC measurements across all -related observables. All previously published differential predictions at the Tevatron are updated to the same accuracy.
- Received 22 November 2017
DOI:https://doi.org/10.1103/PhysRevD.98.014003
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society