113 citations · 671 across the 25 of their papers we have counts for
26 papers
Event Generation with Parallel Langevin Sampling and Learned Stein Diagnostics
Rob Verheyen
Efficient event generation is a major computational challenge for precision collider phenomenology, especially for high-multiplicity final states where matrix-element evaluations a…
Logarithmically-accurate showers with massive quarks
Melissa van Beekveld, Silvia Ferrario Ravasio, Alba Soto-Ontoso +2
We formulate PanScales final-state showers that account for quark masses and achieve next-to-leading logarithmic accuracy, while preserving the original accuracy of the showers for…
Introduction to the PanScales framework, version 0.1
Melissa van Beekveld, Mrinal Dasgupta, Basem Kamal El-Menoufi +11
In this article, we document version 0.1 of the PanScales code for parton shower simulations. With the help of a few examples, we discuss basic usage of the code, including tests o…
Rational Q-systems at Root of Unity I. Closed Chains
Jue Hou, Yunfeng Jiang, Yuan Miao
The solution of Bethe ansatz equations for XXZ spin chain with the parameter being a root of unity is infamously subtle. In this work, we develop the rational -system for th…
Matching and event-shape NNDL accuracy in parton showers
Keith Hamilton, Alexander Karlberg, Gavin P. Salam +2
To explore the interplay of NLO matching and next-to-leading logarithmic (NLL) parton showers, we consider the simplest case of and Higgs-boson decays to and r…
Attention to the strengths of physical interactions: Transformer and graph-based event classification for particle physics experiments
Luc Builtjes, Sascha Caron, Polina Moskvitina +4
A major task in particle physics is the measurement of rare signal processes. Even modest improvements in background rejection, at a fixed signal efficiency, can significantly enha…
PanScales showers for hadron collisions: all-order validation
Melissa van Beekveld, Silvia Ferrario Ravasio, Keith Hamilton +4
We carry out extensive tests of the next-to-leading logarithmic (NLL) accuracy of the PanScales parton showers, as introduced recently for colour-singlet production in hadron colli…
Event Generation and Density Estimation with Surjective Normalizing Flows
Rob Verheyen
Normalizing flows are a class of generative models that enable exact likelihood evaluation. While these models have already found various applications in particle physics, normaliz…
PanScales parton showers for hadron collisions: formulation and fixed-order studies
Melissa van Beekveld, Silvia Ferrario Ravasio, Gavin P. Salam +3
We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for…
Initial state QED radiation aspects for future colliders
S. Frixione, E. Laenen, C. M. Carloni Calame +25
This white paper concerns theoretical and phenomenological aspects relevant to the physics of future colliders, in particular regarding initial-state QED radiation. The co…
A comprehensive guide to the physics and usage of PYTHIA 8.3
Christian Bierlich, Smita Chakraborty, Nishita Desai +11
This manual describes the PYTHIA 8.3 event generator, the most recent version of an evolving physics tool used to answer fundamental questions in particle physics. The program is m…
Machine Learning and LHC Event Generation
Anja Butter, Tilman Plehn, Steffen Schumann +48
First-principle simulations are at the heart of the high-energy physics research program. They link the vast data output of multi-purpose detectors with fundamental theory predicti…
Soft spin correlations in final-state parton showers
Keith Hamilton, Alexander Karlberg, Gavin P. Salam +2
We introduce a simple procedure that resolves the long-standing question of how to account for single-logarithmic spin-correlation effects in parton showers not just in the colline…
Interleaved Resonance Decays and Electroweak Radiation in Vincia
Helen Brooks, Peter Skands, Rob Verheyen
We propose a framework for high-energy interactions in which resonance decays and electroweak branching processes are interleaved with the QCD evolution in a single common sequence…
Rare and Different: Anomaly Scores from a combination of likelihood and out-of-distribution models to detect new physics at the LHC
Sascha Caron, Luc Hendriks, Rob Verheyen
We propose a new method to define anomaly scores and apply this to particle physics collider events. Anomalies can be either rare, meaning that these events are a minority in the n…
Vector Boson Scattering Processes: Status and Prospects
Diogo Buarque Franzosi, Michele Gallinaro, Richard Ruiz +26
Insight into the electroweak (EW) and Higgs sectors can be achieved through measurements of vector boson scattering (VBS) processes. The scattering of EW bosons are rare processes…
Spin correlations in final-state parton showers and jet observables
Alexander Karlberg, Gavin P. Salam, Ludovic Scyboz +1
As part of a programme to develop parton showers with controlled logarithmic accuracy, we consider the question of collinear spin correlations within the PanScales family of parton…
Phase Space Sampling and Inference from Weighted Events with Autoregressive Flows
Bob Stienen, Rob Verheyen
We explore the use of autoregressive flows, a type of generative model with tractable likelihood, as a means of efficient generation of physical particle collider events. The usual…
Collinear Electroweak Radiation in Antenna Parton Showers
Ronald Kleiss, Rob Verheyen
We present a first implementation of collinear electroweak radiation in the Vincia parton shower. Due to the chiral nature of the electroweak theory, explicit spin dependence in th…
Multipole Photon Radiation in the Vincia Parton Shower
Peter Skands, Rob Verheyen
We present algorithms that interleave photon radiation from the final state and the initial state with the QCD evolution in the antenna-based Vincia parton shower. One of the algor…
Event Generation and Statistical Sampling for Physics with Deep Generative Models and a Density Information Buffer
Sydney Otten, Sascha Caron, Wieske de Swart +6
We present a study for the generation of events from a physical process with deep generative models. The simulation of physical processes requires not only the production of physic…
Final-state QED Multipole Radiation in Antenna Parton Showers
Ronald Kleiss, Rob Verheyen
We present a formalism for a fully coherent QED parton shower. The complete multipole structure of photonic radiation is incorporated in a single branching kernel. The regular on-s…
Competing Sudakov Veto Algorithms
Ronald Kleiss, Rob Verheyen
We present a way to analyze the distribution produced by a Monte Carlo algorithm. We perform these analyses on several versions of the Sudakov veto algorithm, adding a cutoff, a se…
RGIsearch: A C++ program for the determination of Renormalization Group Invariants
Rob Verheyen
RGIsearch is a C++ program that searches for invariants of a user-defined set of renormalization group equations. Based on the general shape of the -functions of quantum field t…