134 citations · 446 across the 25 of their papers we have counts for
26 papers
Higgs Boson Pair Production via Gluon Fusion: Higher-Order Corrections and Theoretical Uncertainties
Ajjath A H, Simone Alioli, Emanuele Bagnaschi +51
In this contribution, the higher-order QCD and electroweak corrections to Standard Model Higgs boson pair production via the gluon-fusion mechanism, , are summarized and…
First look at the evaluation of two-loop Feynman integrals for radiative return processes
Mattia Pozzoli, William J. Torres Bobadilla
Precision studies of radiative return processes at low-energy electron--positron colliders require next-to-next-to-leading order QED predictions retaining full dependence on the el…
Electroweak corrections to Higgs boson pair production: The quark channel
Marco Bonetti, Gudrun Heinrich, Philipp Rendler +1
We present the mixed QCD-electroweak corrections to Higgs boson pair production in the quark-antiquark channel. The virtual amplitudes are computed fully analytically using the met…
Radiative return meets GVMD
Pau Petit Rosàs, Olga Shekhovtsova, William J. Torres Bobadilla
We improve the description of pion-photon interactions in the radiative return process at the next-to-leading order by including the pion form factor in the Fey…
Three-loop helicity amplitudes of four-lepton scattering in QED
Giulio Crisanti, Thomas Dave, Pierpaolo Mastrolia +3
We present the analytic expressions of the three-loop virtual corrections to the helicity amplitudes of 2 -> 2 four-fermion scattering processes in massless QED. The contributing F…
Fast evaluation of Feynman integrals for Monte Carlo generators
Pau Petit Rosàs, William J. Torres Bobadilla
Building on the idea of numerically integrating differential equations satisfied by Feynman integrals, we propose a novel strategy for handling branch cuts within a numerical frame…
Differential Space of Feynman Integrals: Annihilators and -module
Vsevolod Chestnov, Wojciech Flieger, Pierpaolo Mastrolia +3
We present a novel algorithm for constructing differential operators with respect to external variables that annihilate Feynman-like integrals and give rise to the associated $\mat…
The anomalous magnetic moment of the muon in the Standard Model: an update
R. Aliberti, T. Aoyama, E. Balzani +232
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, , updating the first White Paper (WP20) [1]. The pure QED and electroweak contrib…
Two-loop light-quark Electroweak corrections to Higgs boson pair production in gluon fusion
Marco Bonetti, Philipp Rendler, William J. Torres Bobadilla
We compute two-loop electroweak corrections to double Higgs boson production in gluon fusion mediated by light quarks in a fully analytical way. We determine a basis of master inte…
Helicity amplitudes in massless QED to higher orders in the dimensional regulator
Thomas Dave, William J. Torres Bobadilla
We analytically calculate one- and two-loop helicity amplitudes in massless QED, by adopting a four-dimensional tensor decomposition. We draw our attention to four-fermion and Comp…
Vacuum amplitudes and time-like causal unitary in the loop-tree duality
The LTD Collaboration, Selomit Ramírez-Uribe, Andrés E. Rentería-Olivo +8
We present the first proof-of-concept application to decay processes at higher perturbative orders of LTD causal unitary, a novel methodology that exploits the causal properties of…
First look at the evaluation of three-loop non-planar Feynman diagrams for Higgs plus jet production
Johannes M. Henn, Jungwon Lim, William J. Torres Bobadilla
We present new computations for Feynman integrals relevant to Higgs plus jet production at three loops, including first results for a non-planar class of integrals. The results are…
Muon-electron scattering at NNLO
A. Broggio, T. Engel, A. Ferroglia +8
We present the first calculation of the complete set of NNLO QED corrections for muon-electron scattering. This includes leptonic, non-perturbative hadronic, and photonic contribut…
Landau and leading singularities in arbitrary space-time dimensions
Wojciech Flieger, William J. Torres Bobadilla
Using the decomposition of the -dimensional space-time into parallel and perpendicular subspaces, we study and prove a connection between Landau and leading singularities for $N…
Two-loop scattering amplitude for heavy-quark pair production through light-quark annihilation in QCD
Manoj K. Mandal, Pierpaolo Mastrolia, Jonathan Ronca +1
We present the first full analytic evaluation of the scattering amplitude for the process up-to two loops in Quantum Chromodynamics, for a massless $(q)…
Maximal transcendental weight contribution of scattering amplitudes
Johannes M. Henn, William J. Torres Bobadilla
Feynman integrals in quantum field theory evaluate to special functions and numbers that are usefully described by the notion of transcendental weight. In this paper, we propose a…
Physical Representations for Scattering Amplitudes and the Wavefunction of the Universe
Paolo Benincasa, William J. Torres Bobadilla
The way we organise perturbation theory is of fundamental importance both for computing the observables of relevance and for extracting fundamental physics out of them. If on one h…
Two-Loop Four-Fermion Scattering Amplitude in QED
R. Bonciani, A. Broggio, S. Di Vita +9
We present the analytic evaluation of the two-loop corrections to the amplitude for the scattering of four fermions in Quantum Electrodynamics, , with…
Universal opening of four-loop scattering amplitudes to trees
Selomit Ramirez-Uribe, Roger J. Hernandez-Pinto, German Rodrigo +2
The perturbative approach to quantum field theories has made it possible to obtain incredibly accurate theoretical predictions in high-energy physics. Although various techniques h…
Causal representation of multi-loop Feynman integrands within the loop-tree duality
J. Jesus Aguilera-Verdugo, Roger J. Hernandez-Pinto, German Rodrigo +2
The numerical evaluation of multi-loop scattering amplitudes in the Feynman representation usually requires to deal with both physical (causal) and unphysical (non-causal) singular…
Open loop amplitudes and causality to all orders and powers from the loop-tree duality
J. Jesus Aguilera-Verdugo, Felix Driencourt-Mangin, Roger J. Hernandez-Pinto +7
Multiloop scattering amplitudes describing the quantum fluctuations at high-energy scattering processes are the main bottleneck in perturbative quantum field theory. The loop-tree…
BCJ Identities and -Dimensional Generalized Unitarity
Amedeo Primo, William J. Torres Bobadilla
We present a set of relations between one-loop integral coefficients for dimensionally regulated QCD amplitudes. Within dimensional regularization, the combined use of color-kinema…
Generalised unitarity for dimensionally regulated amplitudes within FDF
William J. Torres Bobadilla
We review the Four-Dimensional-Formulation variant of the Four-Dimensional-Helicity scheme, by showing two applications of this regularisation scheme. The first one is the computat…
Off-shell Currents and Color-Kinematics Duality
Pierpaolo Mastrolia, Amedeo Primo, Ulrich Schubert +1
We elaborate on the color-kinematics duality for off-shell diagrams in gauge theories coupled to matter, by investigating the scattering process , and show t…