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GAN-AE : An anomaly detection algorithm for New Physics search in LHC data

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arxiv 2305.15179 v2 pith:DKK37YII submitted 2023-05-24 hep-ex

classification hep-ex
keywords anomalydetectionsearchalgorithmmodelmodel-independentphysicsstrategy
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In recent years, interest has grown in alternative strategies for the search for New Physics beyond the Standard Model. One envisaged solution lies in the development of anomaly detection algorithms based on unsupervised machine learning techniques. In this paper, we propose a new Generative Adversarial Network-based auto-encoder model that allows both anomaly detection and model-independent background modeling. This algorithm can be integrated with other model-independent tools in a complete heavy resonance search strategy. The proposed strategy has been tested on the LHC Olympics 2020 dataset with promising results.

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  1. Graph theory inspired anomaly detection at the LHC

    hep-ph 2025-06 conditional novelty 6.0 of 10

    Sparse globally rigid graph representations of jets, combined with roughly 30 reclustered subjets, improve graph autoencoder anomaly detection on the LHC Olympics benchmark.

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