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Currently, newly developed artificial intelligence techniques, in particular convolutional neural networks, are being investigated for use in data-processing and classification of particle physics collider data. One such challenging task is…

High Energy Physics - Experiment · Physics 2020-12-07 Jason Sang Hun Lee , Inkyu Park , Ian James Watson , Seungjin Yang

The classification of jets as quark- versus gluon-initiated is an important yet challenging task in the analysis of data from high-energy particle collisions and in the search for physics beyond the Standard Model. The recent integration of…

High Energy Physics - Phenomenology · Physics 2021-03-17 Alexis Romero , Daniel Whiteson , Michael Fenton , Julian Collado , Pierre Baldi

Artificial intelligence offers the potential to automate challenging data-processing tasks in collider physics. To establish its prospects, we explore to what extent deep learning with convolutional neural networks can discriminate quark…

High Energy Physics - Phenomenology · Physics 2018-09-06 Patrick T. Komiske , Eric M. Metodiev , Matthew D. Schwartz

Since the machine learning techniques are improving rapidly, it has been shown that the image recognition techniques in deep neural networks can be used to detect jet substructure. And it turns out that deep neural networks can match or…

High Energy Physics - Phenomenology · Physics 2018-07-02 Taoli Cheng

Understanding jets initiated by quarks and gluons is of fundamental importance in collider physics. Efficient and robust techniques for quark versus gluon jet discrimination have consequences for new physics searches, precision $\alpha_s$…

High Energy Physics - Phenomenology · Physics 2020-04-17 Andrew J. Larkoski , Eric M. Metodiev

Distinguishing quark-initiated jets from gluon-initiated jets has the potential to significantly improve the reach of many beyond-the-standard model searches at the Large Hadron Collider and to provide additional tests of QCD. To explore…

High Energy Physics - Phenomenology · Physics 2015-06-12 Jason Gallicchio , Matthew D. Schwartz

Deep learning techniques are currently being investigated for high energy physics experiments, to tackle a wide range of problems, with quark and gluon discrimination becoming a benchmark for new algorithms. One weakness is the traditional…

High Energy Physics - Phenomenology · Physics 2020-12-07 Jason Sang Hun Lee , Sang Man Lee , Yunjae Lee , Inkyu Park , Ian James Watson , Seungjin Yang

Machine learning, particularly deep neural networks, has been widely used in high-energy physics, demonstrating remarkable results in various applications. Furthermore, the extension of machine learning to quantum computers has given rise…

High Energy Physics - Phenomenology · Physics 2025-01-23 Yi-An Chen , Kai-Feng Chen

Jet quenching, the modification of jets by the quark-gluon plasma in heavy-ion collisions, provides a sensitive probe of the properties of the medium. A jet-by-jet discrimination study between proton-proton and lead-lead jets using energy…

High Energy Physics - Phenomenology · Physics 2025-11-03 João A. Gonçalves

Jet point cloud images are high dimensional data structures that needs to be transformed to a separable feature space for machine learning algorithms to distinguish them with simple decision boundaries. In this article, the authors focus on…

High Energy Physics - Phenomenology · Physics 2024-07-08 Jairo Orozco Sandoval , Vidya Manian , Sudhir Malik

We present a comprehensive comparison of convolutional and transformer-based models for distinguishing quark and gluon jets using simulated jet images from Pythia 8. By encoding jet substructure into a three-channel representation of…

Data Analysis, Statistics and Probability · Physics 2026-02-03 Daeun Kim , Jiwon Lee , Wonjun Jeong , Hyeongwoo Noh , Giyeong Kim , Jaeyoon Cho , Geonhee Kwak , Seunghwan Yang , MinJung Kweon

We compare the performance of a convolutional neural network (CNN) trained on jet images with dense neural networks (DNNs) trained on n-subjettiness variables to study the distinguishing power of these two separate techniques applied to top…

High Energy Physics - Phenomenology · Physics 2019-09-25 Liam Moore , Karl Nordström , Sreedevi Varma , Malcolm Fairbairn

Discriminating between quark- and gluon-initiated jets has long been a central focus of jet substructure, leading to the introduction of numerous observables and calculations to high perturbative accuracy. At the same time, there have been…

High Energy Physics - Phenomenology · Physics 2022-12-28 Samuel Bright-Thonney , Ian Moult , Benjamin Nachman , Stefan Prestel

Jet classification in high-energy particle physics is important for understanding fundamental interactions and probing phenomena beyond the Standard Model. Jets originate from the fragmentation and hadronization of quarks and gluons, and…

Data Analysis, Statistics and Probability · Physics 2025-08-15 Juvenal Bassa , Vidya Manian , Sudhir Malik , Arghya Chattopadhyay

Deep learning techniques have shown the capability to identify the degree of energy loss of high-energy jets traversing hot QCD medium on a jet-by-jet basis. The average amount of quenching of quark and gluon jets in hot QCD medium actually…

High Energy Physics - Phenomenology · Physics 2022-04-04 Yi-Lun Du , Daniel Pablos , Konrad Tywoniuk

A deep-learning approach based on the transformer architecture is developed to distinguish between jets originating from quarks and gluons. The algorithm operates on jets with transverse momentum $p_{\text{T}} > 20$ and pseudorapidity…

High Energy Physics - Experiment · Physics 2025-12-04 ATLAS Collaboration

Recent literature on deep neural networks for tagging of highly energetic jets resulting from top quark decays has focused on image based techniques or multivariate approaches using high-level jet substructure variables. Here, a sequential…

High Energy Physics - Experiment · Physics 2017-08-10 Jannicke Pearkes , Wojciech Fedorko , Alison Lister , Colin Gay

Distinguishing between quark- and gluon-initiated jets is a critical and challenging task in high-energy physics, pivotal for improving new physics searches and precision measurements at the Large Hadron Collider. While deep learning,…

Computer Vision and Pattern Recognition · Computer Science 2025-06-19 Md Abrar Jahin , Shahriar Soudeep , Arian Rahman Aditta , M. F. Mridha , Nafiz Fahad , Md. Jakir Hossen

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

Machine learning-based jet classifiers are able to achieve impressive tagging performance in a variety of applications in high-energy and nuclear physics. However, it remains unclear in many cases which aspects of jets give rise to this…

High Energy Physics - Phenomenology · Physics 2024-08-20 Dimitrios Athanasakos , Andrew J. Larkoski , James Mulligan , Mateusz Ploskon , Felix Ringer
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