NNLO QCD corrections to three-photon production at the LHC
arXiv:1911.00479 · doi:10.1007/JHEP02(2020)057
Abstract
We compute the NNLO QCD corrections to three-photon production at the LHC. This is the first NNLO QCD calculation for a process. Our calculation is exact, except for the scale-independent part of the two-loop finite remainder which is included in the leading color approximation. We estimate the size of the missing two-loop corrections and find them to be phenomenologically negligible. We compare our predictions with available 8 TeV measurement from the ATLAS collaboration. We find that the inclusion of the NNLO corrections eliminates the existing significant discrepancy with respect to NLO QCD predictions, paving the way for precision phenomenology in this process.
20 pages, 6 figures. v2: published version
References in corpus (14)
- An NNLO subtraction formalism in hadron collisions and its application to Higgs boson production at the LHC
- A novel subtraction scheme for double-real radiation at NNLO
- FiniteFlow: multivariate functional reconstruction using finite fields and dataflow graphs
- Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order
- Four-dimensional formulation of the sector-improved residue subtraction scheme
- Analytic Form of the Planar Two-Loop Five-Parton Scattering Amplitudes in QCD
- Two-Loop Iteration of Five-Point N=4 Super-Yang-Mills Amplitudes
- Analytic Form of the Planar Two-Loop Five-Gluon Scattering Amplitudes in QCD
- Precise predictions for dijet production at the LHC
- The two-loop five-point amplitude in supergravity
- Off-shell Top Quarks with One Jet at the LHC: A comprehensive analysis at NLO QCD
- The two-loop five-particle amplitude in supergravity
- Analytic results for color-singlet production at NNLO QCD with the nested soft-collinear subtraction scheme
- Two-Loop Gravity amplitudes from four dimensional Unitarity