426 citations · 4.5k across the 64 of their papers we have counts for
66 papers
All three-loop four-point massless integrals with one off-shell leg
Thomas Gehrmann, Petr Jakubčík, Jungwon Lim +3
We present the complete set of massless three-loop four-point master integrals with one off-shell external leg. These are essential building blocks for the three-loop virtual corre…
Graded transcendental functions: an application to four-point amplitudes with one off-shell leg
Thomas Gehrmann, Johannes Henn, Petr Jakubčík +5
Several recent works have demonstrated the powerful algebraic simplifications that can be achieved for scattering amplitudes through a systematic grading of transcendental quantiti…
Five-Parton Scattering in QCD at Two Loops
Bakul Agarwal, Federico Buccioni, Federica Devoto +3
We compute all helicity amplitudes for the scattering of five partons in two-loop QCD in all the relevant flavor configurations, retaining all contributing color structures. We emp…
Two-loop QED corrections to the scattering of four massive leptons
Maximilian Delto, Claude Duhr, Lorenzo Tancredi +1
We study two-loop corrections to the scattering amplitude of four massive leptons in quantum electrodynamics. These amplitudes involve previously unknown elliptic Feynman integrals…
Planar three-loop QCD helicity amplitudes for +jet production at hadron colliders
Thomas Gehrmann, Petr Jakubčík, Cesare Carlo Mella +2
We compute the planar three-loop Quantum Chromodynamics (QCD) corrections to the helicity amplitudes involving a vector boson , two quarks and a gluon. These amplitu…
Two-loop helicity amplitudes for jet production including axial vector couplings to higher orders in
Thomas Gehrmann, Petr Jakubčík, Cesare Carlo Mella +2
We compute the two-loop Quantum Chromodynamics (QCD) corrections to all partonic channels relevant for the production of an electroweak boson and a jet at hadron co…
On a procedure to derive -factorised differential equations beyond polylogarithms
Lennard Görges, Christoph Nega, Lorenzo Tancredi +1
In this manuscript, we elaborate on a procedure to derive -factorised differential equations for multi-scale, multi-loop classes of Feynman integrals that evaluate to special fu…
Two-loop helicity amplitudes for jet production to higher orders in the dimensional regulator
Thomas Gehrmann, Petr Jakubčík, Cesare Carlo Mella +2
In view of the forthcoming High-Luminosity phase of the LHC, next-to-next-to-next-to-leading (NLO) calculations for the most phenomenologically relevant processes become necess…
The ice cone family and iterated integrals for Calabi-Yau varieties
Claude Duhr, Albrecht Klemm, Christoph Nega +1
We present for the first time fully analytic results for multi-loop equal-mass ice cone graphs in two dimensions. By analysing the leading singularities of these integrals, we find…
Signal-background interference effects in Higgs-mediated diphoton production beyond NLO
Piotr Bargiela, Federico Buccioni, Fabrizio Caola +3
In this paper we consider signal-background interference effects in Higgs-mediated diphoton production at the LHC. After reviewing earlier works that show how to use these effects…
Beam functions for -jettiness at NLO in perturbative QCD
Daniel Baranowski, Arnd Behring, Kirill Melnikov +2
We present a calculation of all matching coefficients for -jettiness beam functions at next-to-next-to-next-to-leading order (NLO) in perturbative quantum chromodynamics (QC…
Two-loop QCD corrections to the helicity amplitudes with axial-vector couplings
Thomas Gehrmann, Tiziano Peraro, Lorenzo Tancredi
We compute the two-loop corrections to the helicity amplitudes for the coupling of a massive vector boson to a massless quark-antiquark pair and a gluon, accounting for vector and…
Three-loop helicity amplitudes for quark-gluon scattering in QCD
Fabrizio Caola, Amlan Chakraborty, Giulio Gambuti +2
We compute the three-loop helicity amplitudes for and its crossed partonic channels, in massless QCD. Our analytical results provide a non-trivial check of the co…
Functions Beyond Multiple Polylogarithms for Precision Collider Physics
Jacob L. Bourjaily, Johannes Broedel, Ekta Chaubey +14
Feynman diagrams constitute one of the essential ingredients for making precision predictions for collider experiments. Yet, while the simplest Feynman diagrams can be evaluated in…
Three-loop gluon scattering in QCD and the gluon Regge trajectory
Fabrizio Caola, Amlan Chakraborty, Giulio Gambuti +2
We compute the three-loop helicity amplitudes for the scattering of four gluons in QCD. We employ projectors in the 't Hooft-Veltman scheme and construct the amplitudes from a mini…
Three-loop helicity amplitudes for diphoton production in gluon fusion
Piotr Bargiela, Fabrizio Caola, Andreas von Manteuffel +1
We present a calculation of the helicity amplitudes for the process in three-loop massless QCD. We employ a recently proposed method to calculate scattering amplitudes in…
Calculational Techniques in Particle Theory
Lorenzo Tancredi
In this contribution, I review some of the latest advances in calculational techniques in theoretical particle physics. I focus, in particular, on their application to the calculat…
Analytic results for two-loop planar master integrals for Bhabha scattering
Claude Duhr, Vladimir A. Smirnov, Lorenzo Tancredi
We analytically evaluate the master integrals for the second type of planar contributions to the massive two-loop Bhabha scattering in QED using differential equa- tions with canon…
Three-loop helicity amplitudes for four-quark scattering in massless QCD
Fabrizio Caola, Amlan Chakraborty, Giulio Gambuti +2
We compute the three-loop corrections to the helicity amplitudes for scattering in massless QCD. In the Lorentz decomposition of the scattering amplitude we…
Two-loop helicity amplitudes for diphoton plus jet production in full color
Bakul Agarwal, Federico Buccioni, Andreas von Manteuffel +1
We present the complete two-loop corrections in massless QCD for the production of two photons and a jet, taking into account all color structures. In particular, we analytically c…
Two-loop leading colour QCD corrections to and
Bakul Agarwal, Federico Buccioni, Andreas von Manteuffel +1
We present the leading colour and light fermionic planar two-loop corrections for the production of two photons and a jet in the quark-antiquark and quark-gluon channels. In partic…
Tensor decomposition for bosonic and fermionic scattering amplitudes
Tiziano Peraro, Lorenzo Tancredi
In this paper, we elaborate on a method to decompose multiloop multileg scattering amplitudes into Lorentz-invariant form factors, which exploits the simplifications that arise fro…
Di-photon amplitudes in three-loop Quantum Chromodynamics
Fabrizio Caola, Andreas von Manteuffel, Lorenzo Tancredi
We consider the three-loop scattering amplitudes for the production of a pair of photons in quark-antiquark annihilation in Quantum Chromodynamics (QCD). We use suitably defined pr…
On the non-cancellation of infrared singularities in collisions of massive quarks
Fabrizio Caola, Kirill Melnikov, Davide Napoletano +1
We discuss the infrared structure of processes with massive quarks in the initial state. It is well known that, starting from next-to-next-to-leading order in perturbative QCD, suc…