159 citations · 1.5k across the 57 of their papers we have counts for
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A quantum representation of fragmentation functions through variational quantum circuits
David F. Rentería-Estrada, Roger J. Hernández-Pinto, Germán Rodrigo +2
We present a variational quantum-circuit model for fragmentation functions (FFs). Isospin and charge-conjugation symmetries are imposed to construct an independent six-flavor basis…
On the analytic continuation and matching of threshold singularities from Vacuum Amplitudes
Selomit Ram\'ırez-Uribe, Prasanna K. Dhani, German F. R. Sborlini +1
We provide a detailed discussion for all kinematical configurations of the analytic continuation to negative values of initial-state on-shell energies used to generate interference…
Understanding IR singularities in the Loop-Tree Duality
Germán Rodrigo, Leandro Cieri, Prasanna K. Dhani +11
One of the main advantages of the Loop-Tree Duality representation of scattering amplitudes is that it makes the origin of infrared and threshold singularities particularly transpa…
A Systematic Approach to Finite Multiloop Feynman Integrals
Prasanna K. Dhani, Konstantinos Pyretzidis, Selomit Ramírez-Uribe +4
Finite Feynman integrals have been advocated as the optimal components for constructing a basis of master integrals in multiloop calculations, due to their improved analytic and nu…
Transverse-momentum resummation at mixed QCDQED NNLL accuracy for Z boson production at hadron colliders
Andrea Autieri, Stefano Camarda, Leandro Cieri +2
We consider the transverse momentum () distribution of neutral charged bosons at hadron colliders. We perform the resummation of the logarithmically-enhanced effects due to si…
From Feynman integrals to quantum algorithms: the Loop-Tree Duality connection
German Sborlini
In the context of high-energy particle physics, a reliable theory-experiment confrontation requires precise theoretical predictions. This translates into accessing higher-perturbat…
Local renormalisation from causal loop-tree duality
German Sborlini, Jose Rios-Sanchez
We report recent progress on the development of a local renormalisation formalism based on causal loop-tree duality (cLTD). By performing an expansion around the UV-propagator in a…
Using analytic models to describe effective PDFs
Salvador A. Ochoa-Oregon, David F. Rentería-Estrada, Roger J. Hernández-Pinto +2
Parton distribution functions play a pivotal role in hadron collider phenomenology. They are non-perturbative quantities extracted from fits to available data, and their scale depe…
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…
Rewording Theoretical Predictions at Colliders with Vacuum Amplitudes
Selomit Ramírez-Uribe, Prasanna K. Dhani, German F. R. Sborlini +1
We propose multiloop vacuum amplitudes as the optimal building blocks for efficiently assembling theoretical predictions at high-energy colliders. This hypothesis is strongly suppo…
Towards higher-order collinear splittings with massive partons
Prasanna K. Dhani, Germán Rodrigo, German F. R. Sborlini
The singularities associated with QCD factorization in the collinear limit are key ingredients for high-precision theoretical predictions in particle physics. They govern the colli…
Triple-collinear splittings with massive particles
Prasanna K. Dhani, Germán Rodrigo, German F. R. Sborlini
We analyze in detail the most singular behaviour of processes involving triple-collinear splittings with massive particles in the quasi-collinear limit, and present compact express…
Using photon-hadron production to impose restrictions on heavy-hadrons fragmentation functions
German F. R. Sborlini, Roger Hernández-Pinto, Salvador Ochoa-Oregon +1
Fragmentation Functions (FF) are universal non-perturbative objects that model hadronization in some general kind of processes. They are mainly extracted from experimental data, he…
Precision studies for the partonic kinematics calculation through Machine Learning
David F. Renteria-Estrada, Roger J. Hernandez-Pinto, G. F. R. Sborlini +1
High Energy collider experiments are moving to the highest precision frontier quickly. The predictions of observables are based on the factorization formula which helps to connect…
Geometrical causality: casting Feynman integrals into quantum algorithms
German F. R. Sborlini
The calculation of higher-order corrections in Quantum Field Theories is a challenging task. In particular, dealing with multiloop and multileg Feynman amplitudes leads to severe b…
Constraining fragmentation functions through hadron-photon production at higher-orders
Salvador A. Ochoa-Oregon, David F. Rentería-Estrada, Roger J. Hernández-Pinto +1
In certain situations, such as one-particle inclusive processes, it is possible to model the hadronization through Fragmentation Functions (FFs), which are universal non-perturbati…
Combining QED and QCD transverse-momentum resummation for W and Z boson production at hadron colliders
Andrea Autieri, Leandro Cieri, Giancarlo Ferrera +1
In this article, we consider the transverse momentum () distribution of and bosons produced in hadronic collisions. We combine the resummation for QED and QCD ra…
From five-loop scattering amplitudes to open trees with the Loop-Tree Duality
Selomit Ramírez-Uribe, Roger J. Hernández-Pinto, Germán Rodrigo +1
Characterizing multiloop topologies is an important step towards developing novel methods at high perturbative orders in quantum field theory. In this article, we exploit the Loop-…
Reconstructing parton collisions with machine learning techniques
German F. R. Sborlini, David F. Rentería-Estrada, Roger J. Hernández-Pinto +1
Having access to the parton-level kinematics is important for understanding the internal dynamics of particle collisions. Here, we present new results aiming to an efficient recons…
Variational quantum eigensolver for causal loop Feynman diagrams and directed acyclic graphs
Giuseppe Clemente, Arianna Crippa, Karl Jansen +5
We present a variational quantum eigensolver (VQE) algorithm for the efficient bootstrapping of the causal representation of multiloop Feynman diagrams in the Loop-Tree Duality (LT…
Parton distribution effects in the direct photon production at hadron collisions
David F. Rentería-Estrada, Roger J. Hernández-Pinto, German F. R. Sborlini
Parton distribution functions are crucial to understand the internal kinematics of hadrons. There are currently a large number of distribution functions on the market, and thanks t…
Reconstructing partonic kinematics at colliders with Machine Learning
David F. Rentería-Estrada, Roger J. Hernández-Pinto, German F. R. Sborlini +1
In the context of high-energy physics, a reliable description of the parton-level kinematics plays a crucial role for understanding the internal structure of hadrons and improving…
Four-loop scattering amplitudes journey into the forest
Selomit Ramírez-Uribe, Roger J. Hernández-Pinto, Andrés E. Rentería-Olivo +4
We present an overview of the analysis of the multiloop topologies that appear for the first time at four loops and the assembly of them in a general expression, the NMLT unive…
Elucidating the internal structure of hadrons through direct photon production
David F. Rentería-Estrada, Roger J. Hernández-Pinto, German F. R. Sborlini
The accurate description of the internal structure of hadrons is a very challenging task. In order to compare the predictions with the highly-accurate experimental data, it is nece…