Publications (18)
QCD splitting functions beyond kinematical limits
John M. Campbell, Stefan Höche, Max Knobbe +2
We present a systematic decomposition of QCD splitting functions into scalar dipole radiators and pure splitting remainders up to second order in the strong coupling. The individua…
Efficient phase-space generation for hadron collider event simulation
Enrico Bothmann, Taylor Childers, Walter Giele +5
We present a simple yet efficient algorithm for phase-space integration at hadron colliders. Individual mappings consist of a single t-channel combined with any number of s-channel…
Exploring phase space with Neural Importance Sampling
Enrico Bothmann, Timo JanÃen, Max Knobbe +2
We present a novel approach for the integration of scattering cross sections and the generation of partonic event samples in high-energy physics. We propose an importance sampling…
Efficient many-jet event generation with Flow Matching
Enrico Bothmann, Timo JanÃen, Max Knobbe +2
We apply for the first time the Flow Matching method to the problem of phase-space sampling for event generation in high-energy collider physics. By training the model to remap the…
Robust Calibration of Non-Perturbative Models with History Matching
Andrew Iskauskas, Max Knobbe, Frank Krauss +1
We apply, for the first time, Bayes Linear Emulation and History Matching to the calibration of non-perturbative models in Monte Carlo event generators. In contrast to the usual ap…
Double-real corrections to color singlet decay in a parton-shower inspired scheme
John M. Campbell, Stefan Höche, Max Knobbe
We introduce a local infrared subtraction method for next-to-next-to-leading order QCD calculations in color singlet decays, with counterterms based on scalar radiators and pure sp…
Monte Carlo Event Generation with Continuous Normalizing Flows
Enrico Bothmann, Timo JanÃen, Max Knobbe +2
We apply Continuous Normalizing Flows trained with the Flow Matching method to the problem of phase-space sampling in Monte Carlo event generation for high-energy collider physics.…
A Portable Parton-Level Event Generator for the High-Luminosity LHC
Enrico Bothmann, Taylor Childers, Walter Giele +3
The rapid deployment of computing hardware different from the traditional CPU+RAM model in data centers around the world mandates a change in the design of event generators for the…
Reweighting Underlying Event and Colour Reconnection parameter variations in Sherpa
Moritz Pabst, Max Knobbe, Frank Krauss +1
We propose and validate a new method to trace the impact of parameter variations in the simulation of multi-parton interactions and colour reconnections in the Sherpa event generat…
Building an AI-native Research Ecosystem for Experimental Particle Physics: A Community Vision
Thea Klaeboe Aarrestad, Alaa Abdelhamid, Haider Abidi +457
Experimental particle physics seeks to understand the universe by probing its fundamental particles and forces and exploring how they govern the large-scale processes that shape co…
Accelerating LHC event generation with simplified pilot runs and fast PDFs
Enrico Bothmann, Andy Buckley, Ilektra A. Christidi +5
Poor computing efficiency of precision event generators for LHC physics has become a bottleneck for Monte-Carlo event simulation campaigns. We provide solutions to this problem by…
Algorithms for numerically stable scattering amplitudes
Enrico Bothmann, John M. Campbell, Stefan Höche +1
The numerically stable evaluation of scattering matrix elements near the infrared limit of gauge theories is of great importance for the success of collider physics experiments. We…
Measuring Hadronic Higgs Boson Branching Ratios at Future Lepton Colliders
Max Knobbe, Frank Krauss, Daniel Reichelt +1
We present a novel strategy for the simultaneous measurement of Higgs-boson branching ratios into gluons and light quarks at a future lepton collider operating in the Higgs-factory…
Event generation with Sherpa 3
Enrico Bothmann, Lois Flower, Christian Gütschow +12
Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarise new developments, essential feat…
Efficient precision simulation of processes with many-jet final states at the LHC
Enrico Bothmann, Taylor Childers, Christian Guetschow +5
We present a scalable technique for the simulation of collider events with multi-jet final states, based on an improved parton-level event file format. The method is implemented fo…
Many-gluon tree amplitudes on modern GPUs: A case study for novel event generators
Enrico Bothmann, Walter Giele, Stefan Hoeche +2
The compute efficiency of Monte-Carlo event generators for the Large Hadron Collider is expected to become a major bottleneck for simulations in the high-luminosity phase. Aiming a…
(N)NLO+NLL' accurate predictions for plain and groomed 1-jettiness in neutral current DIS
Max Knobbe, Daniel Reichelt, Steffen Schumann
The possibility to reanalyse data taken by the HERA experiments offers the chance to study modern QCD jet and event-shape observables in deep-inelastic scattering. To address this,…
Precision calculations for groomed event shapes at HERA
Max Knobbe, Daniel Reichelt, Steffen Schumann +1
The possibility to reanalyse data taken by the HERA experiments offers the chance to study modern QCD jet and event-shape observables in deep-inelastic scattering production. In th…