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In this paper, we show how to adapt and deploy anomaly detection algorithms based on deep autoencoders, for the unsupervised detection of new physics signatures in the extremely challenging environment of a real-time event selection system…

We present a machine learning-based anomaly detection strategy designed to identify anomalous physics in events containing resonant Standard Model physics and demonstrate this method on the final state of a Higgs boson decaying to two…

High Energy Physics - Experiment · Physics 2025-08-20 Chi Lung Cheng , Sarah Demers , Sascha Diefenbacher , Runze Li , Benjamin Nachman , Dennis Noll

This paper explores different strategies for enhancing sensitivity to new heavy resonances that decay into two or more Higgs bosons. This is achieved using two neural network architectures: an unsupervised autoencoder for anomaly detection…

High Energy Physics - Phenomenology · Physics 2025-11-13 Sergei V. Chekanov , Wasikul Islam , Nicholas Luongo

We present a novel implementation of classification using the machine learning / artificial intelligence method called boosted decision trees (BDT) on field programmable gate arrays (FPGA). The firmware implementation of binary…

High Energy Physics - Experiment · Physics 2023-04-12 Tae Min Hong , Benjamin Carlson , Brandon Eubanks , Stephen Racz , Stephen Roche , Joerg Stelzer , Daniel Stumpp

We present a novel application of the machine learning / artificial intelligence method called boosted decision trees to estimate physical quantities on field programmable gate arrays (FPGA). The software package fwXmachina features a new…

High Energy Physics - Experiment · Physics 2023-04-12 Benjamin Carlson , Quincy Bayer , Tae Min Hong , Stephen Roche

Anomaly detection in supercomputers is a very difficult problem due to the big scale of the systems and the high number of components. The current state of the art for automated anomaly detection employs Machine Learning methods or…

Machine Learning · Computer Science 2020-07-30 Andrea Borghesi , Andrea Bartolini , Michele Lombardi , Michela Milano , Luca Benini

Anomaly detection offers a promising strategy for discovering new physics at the Large Hadron Collider (LHC). This paper investigates AutoEncoders built using neuromorphic Spiking Neural Networks (SNNs) for this purpose. One key application…

High Energy Physics - Phenomenology · Physics 2025-08-04 Barry M. Dillon , Jim Harkin , Aqib Javed

We present an application of unsupervised learning for zero-bias detection of rare particle decays and exotic hadrons in low-background environments such as those characteristic of diffractive events and ultraperipheral pp, p--A, or A--A…

High Energy Physics - Phenomenology · Physics 2024-11-05 Simone Ragoni , Janet Seger , Christopher Anson

The lack of evidence for new interactions and particles at the Large Hadron Collider has motivated the high-energy physics community to explore model-agnostic data-analysis approaches to search for new physics. Autoencoders are unsupervised…

High Energy Physics - Phenomenology · Physics 2022-05-20 Vishal S. Ngairangbam , Michael Spannowsky , Michihisa Takeuchi

Weakly supervised methods have emerged as a powerful tool for model-agnostic anomaly detection at the Large Hadron Collider (LHC). While these methods have shown remarkable performance on specific signatures such as di-jet resonances, their…

This paper discusses model-agnostic searches for new physics at the Large Hadron Collider (LHC) using anomaly-detection techniques for the identification of event signatures that deviate from the Standard Model (SM). We investigate anomaly…

High Energy Physics - Phenomenology · Physics 2022-09-26 S. V. Chekanov , W. Hopkins

This work presents advancements in model-agnostic searches for new physics at the Large Hadron Collider (LHC) through the application of event-based anomaly detection techniques utilizing unsupervised machine learning. We discuss the…

High Energy Physics - Phenomenology · Physics 2025-12-01 Wasikul Islam , Sergei Chekanov , Nicholas Luongo

Exotic decays of the Standard Model-like Higgs boson into beyond-the-Standard Model particles are predicted in a wide range of well-motivated theories. The enormous samples of Higgs bosons that have been and will be produced at the Large…

High Energy Physics - Phenomenology · Physics 2022-10-12 Maria Cepeda , Stefania Gori , Verena Martinez Outschoorn , Jessie Shelton

A search is presented for a heavy resonance $Y$ decaying into a Standard Model Higgs boson $H$ and a new particle $X$ in a fully hadronic final state. The full Large Hadron Collider Run 2 dataset of proton-proton collisions at $\sqrt{s}=…

High Energy Physics - Experiment · Physics 2023-12-06 ATLAS Collaboration

We present the preparation, deployment, and testing of an autoencoder trained for unbiased detection of new physics signatures in the CMS experiment Global Trigger (GT) test crate FPGAs during LHC Run 3. The GT makes the final decision…

High Energy Physics - Experiment · Physics 2024-12-02 Abhijith Gandrakota

We study the tagging of Higgs exotic decay signals using different types of deep neural networks (DNNs), focusing on the $W^\pm h$ associated production channel followed by Higgs decaying into $n$ $b$-quarks with $n=4$, 6 and 8. All the…

High Energy Physics - Phenomenology · Physics 2022-02-23 Sunghoon Jung , Zhen Liu , Lian-Tao Wang , Ke-Pan Xie

Particle identification is one of the core tasks in the data analysis pipeline at the Large Hadron Collider (LHC). Statistically, this entails the identification of rare signal events buried in immense backgrounds that mimic the properties…

Machine Learning · Statistics 2020-01-20 Vidhi Lalchand

The application of machine learning techniques for anomaly detection in particle accelerators has gained popularity in recent years. These efforts have ranged from the analysis of quenches in radio frequency cavities and superconducting…

Accelerator Physics · Physics 2021-12-16 Jonathan P. Edelen , Nathan M. Cook

This study explores the application of autoencoder-based machine learning techniques for anomaly detection to identify exoplanet atmospheres with unconventional chemical signatures using a low-dimensional data representation. We use the…

Earth and Planetary Astrophysics · Physics 2026-01-06 Alexander Roman , Emilie Panek , Roy T. Forestano , Eyup B. Unlu , Katia Matcheva , Konstantin T. Matchev

Future electron-positron colliders will play a leading role in the precision measurement of Higgs boson couplings which is one of the central interests in particle physics. Aiming at maximizing the performance to measure the Higgs couplings…

High Energy Physics - Phenomenology · Physics 2022-07-20 So Chigusa , Shu Li , Yuichiro Nakai , Wenxing Zhang , Yufei Zhang , Jiaming Zheng
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