Predictions for the isolated diphoton production through NNLO in QCD and comparison to the 8 TeV ATLAS data

Abstract

We present cross section predictions for the isolated diphoton production in next-to-next-to-leading order (NNLO) QCD using the computational framework MATRIX. Both the integrated and the differential fiducial cross sections are calculated. We found that the arbitrary setup of the isolation procedure introduces uncertainties with a size comparable to the estimation of the theoretical uncertainties obtained with the customary variation of the factorization and renormalization scales. This fact is taken into account in the final result.

arXiv comment13 pages, 4 figures, 2 tables

References in corpus (21)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Parton distributions from high-precision collider data
• New parton distribution functions from a global analysis of quantum chromodynamics
• Parton distributions in the LHC era: MMHT 2014 PDFs
• Scattering Amplitudes with Open Loops
• An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
• Collier: a fortran-based Complex One-Loop LIbrary in Extended Regularizations
• Isolated photons in perturbative QCD
• Electron performance measurements with the ATLAS detector using the 2010 LHC proton-proton collision data
• Fully differential NNLO computations with MATRIX
• Color singlet production at NNLO in MCFM
• Vector boson production at hadron colliders: hard-collinear coefficients at the NNLO
• Measurement of isolated-photon pair production in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Two-loop QED and QCD corrections to massless fermion-boson scattering
• Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at sqrt(s) = 7 TeV
• Gluon-gluon contributions to the production of continuum diphoton pairs at hadron colliders
• Quarks and Gluon Fragmentation Functions into Photons
• Beyond leading order effects in photon pair production at the Tevatron
• Diphoton production at the LHC: a QCD study up to NNLO
• Measurements of integrated and differential cross sections for isolated photon pair production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Diphoton isolation studies