activity
20172023
most citedA first look at two-loop five-gluon scattering in QCD

116 citations · 302 across the 13 of their papers we have counts for

collaborators

14 papers

hep-ph2023★ 2 cited

Scale dependence of non-factorizable virtual corrections to Higgs boson production in weak boson fusion

Christian Brønnum-Hansen, Ming-Ming Long, Kirill Melnikov

The renormalization-scale dependence of the non-factorizable virtual corrections to Higgs boson production in weak boson fusion at next-to-next-to-leading order in perturbative QCD…

hep-ph2023★ 3 cited

On the non-factorizable corrections to Higgs boson production in weak boson fusion

Konstantin Asteriadis, Christian Brønnum-Hansen, Kirill Melnikov

We discuss the non-factorizable corrections to Higgs boson production in weak boson fusion at the Large Hadron Collider. Such corrections depend on the finite part of the two-loop…

hep-ph2022★ 1 cited

Non-factorisable contributions to -channel single-top production at the LHC and FCC

Christian Brønnum-Hansen, Jérémie Quarroz, Chiara Signorile-Signorile +1

Single top quark is mainly produced through the -channel W boson exchange at LHC. This process probes Wtb vertex directly and can be used to measure t…

hep-ph2022★ 15 cited

Non-factorisable contribution to -channel single-top production

Christian Brønnum-Hansen, Kirill Melnikov, Jérémie Quarroz +2

We compute the non-factorisable corrections to -channel single-top quark production at the LHC. These peculiar corrections arise because of interactions betwee…

hep-ph2022

Non-factorisable two-loop contribution to -channel single-top production

Christian Brønnum-Hansen, Jérémie Quarroz, Chen-Yu Wang

We report on a recent computation of the non-factorisable contribution to the two-loop helicity amplitude for -channel single-top production arXiv:2108.09222. This is the last m…

hep-ph2021★ 2 cited

On non-factorisable contributions to -channel single-top production

Christian Brønnum-Hansen, Kirill Melnikov, Jérémie Quarroz +1

We compute the non-factorisable contribution to the two-loop helicity amplitude for -channel single-top production, the last missing piece of the two-loop virtual corrections to…

hep-ph2021★ 5 cited

Virtual QCD corrections to gluon-initiated diphoton plus jet production at hadron colliders

Simon Badger, Christian Brønnum-Hansen, Dmitry Chicherin +7

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…

hep-ph2021★ 22 cited

Top quark contribution to two-loop helicity amplitudes for boson pair production in gluon fusion

Christian Brønnum-Hansen, Chen-Yu Wang

We compute the top quark contribution to the two-loop amplitude for on-shell boson pair production in gluon fusion, . Exact dependence on the top quark mass is retai…

hep-ph2020★ 19 cited

Contribution of third generation quarks to two-loop helicity amplitudes for W boson pair production in gluon fusion

Christian Brønnum-Hansen, Chen-Yu Wang

We compute the contribution of third generation quarks () to the two-loop amplitude for on-shell boson pair production in gluon fusion . We present plots for…

hep-ph2019

A numerical evaluation of planar two-loop helicity amplitudes for a W-boson plus four partons

Heribertus Bayu Hartanto, Simon Badger, Christian Brønnum-Hansen +1

We present the first numerical results for the two-loop helicity amplitudes for the scattering of four partons and a W-boson in QCD. We use a finite field sampling method to reduce…

hep-ph2018★ 94 cited

Analytic helicity amplitudes for two-loop five-gluon scattering: the single-minus case

Simon Badger, Christian Brønnum-Hansen, Heribertus Bayu Hartanto +1

We present a compact analytic expression for the leading colour two-loop five-gluon amplitude in Yang-Mills theory with a single negative helicity and four positive helicities. The…

hep-ph2018★ 4 cited

Applications of integrand reduction to two-loop five-point scattering amplitudes in QCD

Simon Badger, Christian Brønnum-Hansen, Thomas Gehrmann +4

We review the current state-of-the-art in integrand level reduction for five-point scattering amplitudes at two loops in QCD. We present some benchmark results for the evaluation o…

hep-ph2017★ 116 cited

A first look at two-loop five-gluon scattering in QCD

Simon Badger, Christian Brønnum-Hansen, Heribertus Bayu Hartanto +1

We compute the leading colour contributions to five-gluon scattering at two loops in massless QCD. The integrands of all independent helicity amplitudes are evaluated using d-dimen…

hep-ph2017★ 19 cited

A unitarity compatible approach to one-loop amplitudes with massive fermions

Simon Badger, Christian Brønnum-Hansen, Francesco Buciuni +1

We explain how one-loop amplitudes with massive fermions can be computed using only on-shell information. We first use the spinor-helicity formalism in six dimensions to perform ge…