Top production at the LHC: the impact of PDF uncertainties and correlations

Understand

In this contribution we discuss the impact of PDF uncertainties on t\bar{t} and t-channel single-top production at the LHC.

• We present predictions for total cross-sections computed at NLO accuracy with different PDF sets.
• For single- top production, we point out that the uncertainty arising from the choice of the bottom quark mass is one of the dominant theoretical uncertainties on the total cross-section.
• Finally, the possibility of using PDF induced correlations between top quark and electroweak vector boson production cross-sections to improve the accuracy of LHC measurements is investigated.