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Jet measurements in heavy ion collisions can provide constraints on the properties of the quark gluon plasma, but the kinematic reach is limited by a large, fluctuating background. We present a novel application of symbolic regression to…

High Energy Physics - Experiment · Physics 2024-03-12 Tanner Mengel , Patrick Steffanic , Charles Hughes , Antonio Carlos Oliveira da Silva , Christine Nattrass

Machine learning based on convolutional neural networks can be used to study jet images from the LHC. Top tagging in fat jets offers a well-defined framework to establish our DeepTop approach and compare its performance to QCD-based top…

High Energy Physics - Phenomenology · Physics 2017-05-17 Gregor Kasieczka , Tilman Plehn , Michael Russell , Torben Schell

An important aspect of the study of Quark-Gluon Plasma (QGP) in ultra-relativistic collisions of heavy ions is the ability to identify, in experimental data, a subset of the jets that were strongly modified by the interaction with the QGP.…

High Energy Physics - Phenomenology · Physics 2021-12-01 L. Apolinário , N. F. Castro , M. Crispim Romão , J. G. Milhano , R. Pedro , F. C. R. Peres

We present a quantum enhanced tagger to identify jets with large Lorentz boost at colliders. For the first time, a convolutional quantum graph neural network (QGNN) is designed to discriminate boosted jets arising from hadronic decays of…

High Energy Physics - Phenomenology · Physics 2026-05-19 Parichehr Kangaziankangazi , Abideh Jafari , Maurizio Pierini , Hamed Bakhshiansohi

With the great promise of deep learning, discoveries of new particles at the Large Hadron Collider (LHC) may be imminent. Following the discovery of a new Beyond the Standard model particle in an all-hadronic channel, deep learning can also…

High Energy Physics - Phenomenology · Physics 2025-04-30 Jakub Filipek , Shih-Chieh Hsu , John Kruper , Kirtimaan Mohan , Benjamin Nachman

The determination of charged particle trajectories in collisions at the CERN Large Hadron Collider (LHC) is an important but challenging problem, especially in the high interaction density conditions expected during the future…

Recent work has demonstrated that geometric deep learning methods such as graph neural networks (GNNs) are well suited to address a variety of reconstruction problems in high energy particle physics. In particular, particle tracking data is…

High Energy Physics - Experiment · Physics 2023-02-07 Gage DeZoort , Savannah Thais , Javier Duarte , Vesal Razavimaleki , Markus Atkinson , Isobel Ojalvo , Mark Neubauer , Peter Elmer

Supersymmetry with hadronic R-parity violation in which the lightest neutralino decays into three quarks is still weakly constrained. This work aims to further improve the current search for this scenario by the boosted decision tree method…

High Energy Physics - Phenomenology · Physics 2018-11-07 Jun Guo , Jinmian Li , Tianjun Li , Fangzhou Xu , Wenxing Zhang

Based on the jet image approach, which treats the energy deposition in each calorimeter cell as the pixel intensity, the Convolutional neural network (CNN) method has been found to achieve a sizable improvement in jet tagging compared to…

High Energy Physics - Phenomenology · Physics 2021-05-05 Jinmian Li , Tianjun Li , Fang-Zhou Xu

Composing Graph Neural Networks (GNNs) of operations that respect physical symmetries has been suggested to give better model performance with a smaller number of learnable parameters. However, real-world applications, such as in high…

High Energy Physics - Phenomenology · Physics 2023-03-01 Daniel Murnane , Savannah Thais , Jason Wong

There has been substantial progress in applying machine learning techniques to classification problems in collider and jet physics. But as these techniques grow in sophistication, they are becoming more sensitive to subtle features of jets…

High Energy Physics - Phenomenology · Physics 2021-02-01 Oz Amram , Cristina Mantilla Suarez

Machine learning has played a pivotal role in advancing physics, with deep learning notably contributing to solving complex classification problems such as jet tagging in the field of jet physics. In this experiment, we aim to harness the…

High Energy Physics - Phenomenology · Physics 2023-11-27 Mauricio A. Diaz , Giorgio Cerro , Jacan Chaplais , Srinandan Dasmahapatra , Stefano Moretti

Recent developments in the methods of explainable AI (XAI) allow researchers to explore the inner workings of deep neural networks (DNNs), revealing crucial information about input-output relationships and realizing how data connects with…

High Energy Physics - Experiment · Physics 2023-07-07 Ayush Khot , Mark S. Neubauer , Avik Roy

Spectral Graph Convolutional Networks (GCNs) are a generalization of convolutional networks to learning on graph-structured data. Applications of spectral GCNs have been successful, but limited to a few problems where the graph is fixed,…

Machine Learning · Computer Science 2018-11-26 Boris Knyazev , Xiao Lin , Mohamed R. Amer , Graham W. Taylor

The identification of $\gamma$-rays from the predominant hadronic-background is a key aspect in their ground-based detection using Imaging Atmospheric Cherenkov Telescopes (IACTs). While current methods are limited in their ability to…

High Energy Astrophysical Phenomena · Physics 2025-10-08 Abhay Mehta , Dan Parsons , Tim Lukas Holch , David Berge , Matthias Weidlich

Graph Neural Networks (GNNs) are effective for processing graph-structured data but face challenges with large graphs due to high memory requirements and inefficient sparse matrix operations on GPUs. Quantum Computing (QC) offers a…

Machine Learning · Computer Science 2025-11-04 Mikel Casals , Vasilis Belis , Elias F. Combarro , Eduard Alarcón , Sofia Vallecorsa , Michele Grossi

Attention-based transformer models have become increasingly prevalent in collider analysis, offering enhanced performance for tasks such as jet tagging. However, they are computationally intensive and require substantial data for training.…

High Energy Physics - Phenomenology · Physics 2024-06-04 A. Hammad , Mihoko M. Nojiri

Jet interactions in a hot QCD medium created in heavy-ion collisions are conventionally assessed by measuring the modification of the distributions of jet observables with respect to the proton-proton baseline. However, the steeply falling…

High Energy Physics - Phenomenology · Physics 2021-04-01 Yi-Lun Du , Daniel Pablos , Konrad Tywoniuk

Studying heavy-flavor jets in pp collision is important since they can test pQCD calculations and be used as a reference for heavy-ion collisions. Jets in this analysis are reconstructed from charged particles using the…

High Energy Physics - Phenomenology · Physics 2025-04-28 Hadi Hassan , Neelkamal Mallick , D. J. Kim

This paper presents a challenging computer vision task, namely the detection of generic components on a PCB, and a novel set of deep-learning methods that are able to jointly leverage the appearance of individual components and the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Chia-Wen Kuo , Jacob Ashmore , David Huggins , Zsolt Kira