Outputs (4)

Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED (2023)
Journal Article
Badger, S., Kryś, J., Moodie, R., & Zoia, S. (2023). Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED. Journal of High Energy Physics, 2023(11), Article 41. https://doi.org/10.1007/jhep11%282023%29041

We compute the two-loop QED helicity amplitudes for the scattering of a lepton pair with an off-shell and an on-shell photon, 0 → ℓℓ¯γγ*, using the approximation of massless leptons. We express all master integrals relevant for the scattering of four... Read More about Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED.

Next-to-leading order QCD corrections to diphoton-plus-jet production through gluon fusion at the LHC (2021)
Journal Article
Badger, S., Gehrmann, T., Marcoli, M., & Moodie, R. (2022). Next-to-leading order QCD corrections to diphoton-plus-jet production through gluon fusion at the LHC. Physics Letters B, 824, Article 136802. https://doi.org/10.1016/j.physletb.2021.136802

We compute the next-to-leading order (NLO) QCD corrections to the gluon-fusion subprocess of diphoton-plus-jet production at the LHC. We compute fully differential distributions by combining two-loop virtual corrections with one-loop real radiation u... Read More about Next-to-leading order QCD corrections to diphoton-plus-jet production through gluon fusion at the LHC.

Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders (2021)
Journal Article
Badger, S., Brønnum-Hansen, C., Chicherin, D., Gehrmann, T., Hartanto, H. B., Henn, J., …Zoia, S. (2021). Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders. Journal of High Energy Physics, 2021(11), Article 83. https://doi.org/10.1007/jhep11%282021%29083

We present an analytic computation of the gluon-initiated contribution to diphoton plus jet production at hadron colliders up to two loops in QCD. We reconstruct the analytic form of the finite remainders from numerical evaluations over finite fields... Read More about Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders.

Optimising simulations for diphoton production at hadron colliders using amplitude neural networks (2021)
Journal Article
Aylett-Bullock, J., Badger, S., & Moodie, R. (2021). Optimising simulations for diphoton production at hadron colliders using amplitude neural networks. Journal of High Energy Physics, 2021(8), https://doi.org/10.1007/jhep08%282021%29066

Machine learning technology has the potential to dramatically optimise event generation and simulations. We continue to investigate the use of neural networks to approximate matrix elements for high-multiplicity scattering processes. We focus on the... Read More about Optimising simulations for diphoton production at hadron colliders using amplitude neural networks.