5.6k citations · 17.3k across the 84 of their papers we have counts for
89 papers
Pythia-Contrib: a modular contribution framework for the Pythia 8 event generator
Benoit Assi, Christian Bierlich, Rikab Gambhir +6
Pythia is a general-purpose Monte Carlo event generator used in particle, astroparticle, and nuclear physics, by theorists and experimentalists, to simulate particle collisions. Be…
HEPTABench: A framework for portable and controlled agentic evaluations in high energy physics
Tony Menzo, Alexander Roman, George T. Fleming +3
Quantifying the capability and reliability of agentic systems in high-energy physics (HEP) requires repeated evaluations under controlled configurations. Establishing whether chang…
Reining in an Agentic Harness for High Energy Physics
Tony Menzo, George T. Fleming, Konstantin T. Matchev +2
Agentic systems now address tasks across theoretical, phenomenological, and experimental high energy physics (HEP), but their scientific capabilities remain difficult to reuse acro…
Confinement, String Breaking, and Hadronization in the Compact Abelian Higgs Model
Blake Senseman, Zane Ozzello, Yannick Meurice +1
While real-time simulation of Quantum Chromodynamics remains technologically out of reach, many simplified models for studying elements of QCD phenomenology are being investigated.…
Vistas: A Visualization Interface for Particle Collision Simulations
Benoit Assi, Christan Bierlich, Rikab Gambhir +7
We introduce Vistas, a tool for visualizing high-energy particle physics collisions simulated by the Pythia Monte-Carlo event generator. Vistas utilizes the browser-based event dis…
Agentic Diagrammatica: Towards Autonomous Symbolic Computation in High Energy Physics
Tony Menzo, Alexander Roman, George T. Fleming +3
We present Diagrammatica, a symbolic computation extension to the HEPTAPOD agentic framework, which enables LLM agents to plan and execute multi-step theoretical calculations. Symb…
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…
HDSense: An efficient method for ranking observable sensitivity
Benoît Assi, Christian Bierlich, Rikab Gambhir +6
Identifying which observables most effectively constrain model parameters can be computationally prohibitive when considering full likelihoods of many correlated observables. This…
HEPTAPOD: Orchestrating High Energy Physics Workflows Towards Autonomous Agency
Tony Menzo, Alexander Roman, Sergei Gleyzer +5
Many theoretical and experimental workflows in high-energy-physics (HEP) stand to benefit from recent advances in transformer-based large language models (LLMs). While early applic…
Iterative HOMER with uncertainties
Anja Butter, Ayodele Ore, Sofia Palacios Schweitzer +10
We present iHOMER, an iterative version of the HOMER method to extract Lund fragmentation functions from experimental data. Through iterations, we address the information gap betwe…
Bayesian Optimization of Pythia8 Tunes
Ali Al Kadhim, Harrison B Prosper, Stephen Mrenna
A new tune (set of model parameters) is found for the six most important parameters of the Pythia8 final state parton shower and hadronization model using Bayesian optimization. Th…
Post-hoc reweighting of hadron production in the Lund string model
Benoît Assi, Christan Bierlich, Philip Ilten +6
We present a method for reweighting flavor selection in the Lund string fragmentation model. This is the process of calculating and applying event weights enabling fast and exact v…
New physics particles mixing with mesons: production in the fragmentation chain
Yehor Kyselov, Stephen Mrenna, Maksym Ovchynnikov
A class of extensions to the Standard Model adds hypothetical long-lived particles (LLPs) that have mass- or kinetic-mixing with neutral mesons, such as pions or rho mesons. The mi…
The Critical Importance of Software for HEP
HEP Software Foundation, :, Christina Agapopoulou +24
Particle physics has an ambitious and broad global experimental programme for the coming decades. Large investments in building new facilities are already underway or under conside…
Characterizing the hadronization of parton showers using the HOMER method
Benoit Assi, Christian Bierlich, Philip Ilten +6
We update the HOMER method, a technique to solve a restricted version of the inverse problem of hadronization -- extracting the Lund string fragmentation function from data…
Rejection Sampling with Autodifferentiation - Case study: Fitting a Hadronization Model
Nick Heller, Phil Ilten, Tony Menzo +5
We present an autodifferentiable rejection sampling algorithm termed Rejection Sampling with Autodifferentiation (RSA). In conjunction with reweighting, we show that RSA can be use…
Describing Hadronization via Histories and Observables for Monte-Carlo Event Reweighting
Christian Bierlich, Phil Ilten, Tony Menzo +5
We introduce a novel method for extracting a fragmentation model directly from experimental data without requiring an explicit parametric form, called Histories and Observables for…
Scalar QED with Rydberg atoms
Yannick Meurice, James Corona, Sergio Cantu +6
We review recent suggestions to quantum simulate scalar electrodynamics (the lattice Abelian Higgs model) in dimensions with rectangular arrays of Rydberg atoms. We show that…
Non-Relativistic Quantum Chromodynamics in Parton Showers
Naomi Cooke, Philip Ilten, Leif Lönnblad +1
Measurements of quarkonia isolation in jets at the Large Hadron Collider (LHC) have been shown to disagree with fixed-order non-relativistic quantum chromodynamics (NRQCD) calculat…
Towards a data-driven model of hadronization using normalizing flows
Christian Bierlich, Phil Ilten, Tony Menzo +5
We introduce a model of hadronization based on invertible neural networks that faithfully reproduces a simplified version of the Lund string model for meson hadronization. Addition…
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…
Matrix element corrections in the Pythia8 parton shower in the context of matched simulations at next-to-leading order
Stefano Frixione, Simone Amoroso, Stephen Mrenna
We discuss the role of matrix element corrections (MEC) to parton showers in the context of MC@NLO-type matchings for processes that feature unstable resonances, where MEC are liab…
Reweighting Monte Carlo Predictions and Automated Fragmentation Variations in Pythia 8
Christan Bierlich, Philip Ilten, Tony Menzo +5
This work reports on a method for uncertainty estimation in simulated collider-event predictions. The method is based on a Monte Carlo-veto algorithm, and extends previous work on…
Simulating scalar field theories on quantum computers with limited resources
Andy C. Y. Li, Alexandru Macridin, Stephen Mrenna +1
We present a quantum algorithm for implementing lattice scalar field theory on qubit computers. The field is represented in the discretized field amplitude basis. The number…