activity
19992026
most citedHiggs boson production at hadron colliders in NNLO QCD

1k citations · 8.5k across the 66 of their papers we have counts for

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68 papers

hep-ph2026

Ward identity preserving local ultraviolet counterterms for photoproduction at two loops in QCD

Charalampos Anastasiou, Julia Karlen, Roshni Sahoo +2

We review the construction of locally finite two-loop amplitude integrands for photoproduction via quark annihilation, presented in arXiv:2509.07805. Building on established techni…

hep-ph2026

Local finiteness for real-virtual corrections to electroweak production in partonic collisions

Charalampos Anastasiou, Julia Karlen, Yao Ma +1

We present a local subtraction scheme that enables the combined integration of loop momenta and the final-state parton phase space in real-virtual NNLO QCD corrections to cross sec…

hep-ph2025

General finite two-loop amplitude integrand for photoproduction in quark annihilation

Charalampos Anastasiou, Julia Karlen, Roshni Sahoo +2

The construction of integrands free of infrared and ultraviolet singularities may enable the application of numerical methods to evaluate loop amplitudes that are inaccessible with…

hep-ph2024★ 9 cited

Locally finite two-loop amplitudes for electroweak production through gluon fusion

Charalampos Anastasiou, Julia Karlen, George Sterman +1

The computation of two-loop amplitudes for the production of multiple Higgs and electroweak gauge bosons via gluon fusion with exact dependence on quark masses relies primarily on…

hep-ph2023

Tensor reduction of loop integrals

Charalampos Anastasiou, Julia Karlen, Matilde Vicini

The computational cost associated with reducing tensor integrals to scalar integrals using the Passarino-Veltman method is dominated by the diagonalisation of large systems of equa…

hep-ph2022★ 16 cited

Locally finite two-loop QCD amplitudes from IR universality for electroweak production

Charalampos Anastasiou, George Sterman

We describe the implementation of infrared subtractions for two-loop QCD corrections to quark-antiquark annihilation to electroweak final states. The subtractions are given as form…