Speaker
Alessandro Broggio
(University of Milano-Bicocca)
Description
In this talk I will present a new NNLO calculation for the photon pair production process at the LHC where the 0-jettiness resolution variable is resummed to NNLL' accuracy.This higher-order resummation is based on a factorisation formula derived within Soft-Collinear Effective in the small 0-jettiness region.
Then I will discuss the implementation of this process within the Geneva Monte Carlo framework by focusing on the photon isolation algorithm to remove final-state QED singularities. The partonic events are then showered and hadronised using Pythia8 while retaining the NNLO QCD accuracy for observables which are inclusive over the additional radiation.I will finally show comparisons of our predictions to LHC data at 7 TeV.
Primary author
Alessandro Broggio
(University of Milano-Bicocca)
