Details

Autor(en) / Beteiligte

• Aarrestad, Thea
• van Beekveld, Melissa
• Bona, Marcella
• Boveia, Antonio
• Caron, Sascha
• Davies, Joe
• de Simone, Andrea
• Doglioni, Caterina
• Duarte, Javier
• Farbin, Amir
• Gupta, Honey
• Hendriks, Luc
• Heinrich, Lukas A.
• Howarth, James
• Jawahar, Pratik
• Jueid, Adil
• Lastow, Jessica
• Leinweber, Adam
• Mamuzic, Judita
• Merényi, Erzsébet
• Morandini, Alessandro
• Moskvitina, Polina
• Nellist, Clara
• Ngadiuba, Jennifer
• Ostdiek, Bryan
• Pierini, Maurizio
• Ravina, Baptiste
• Ruiz de Austri, Roberto
• Sekmen, Sezen
• Touranakou, Mary
• Vaškeviciute, Marija
• Vilalta, Ricardo
• Vlimant, Jean-Roch
• Verheyen, Rob
• White, Martin
• Wulff, Eric
• Wallin, Erik
• Wozniak, Kinga A.
• Zhang, Zhongyi

Titel

The Dark Machines Anomaly Score Challenge: Benchmark Data and Model Independent Event Classification for the Large Hadron Collider

Ist Teil von

• SciPost physics, 2022-01, Vol.12 (1), p.043, Article 043

Ort / Verlag

Netherlands: Stichting SciPost

Erscheinungsjahr

2022

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We describe the outcome of a data challenge conducted as part of the Dark Machines (https://www.darkmachines.org) initiative and the Les Houches 2019 workshop on Physics at TeV colliders. The challenged aims to detect signals of new physics at the Large Hadron Collider (LHC) using unsupervised machine learning algorithms. First, we propose how an anomaly score could be implemented to define model-independent signal regions in LHC searches. We define and describe a large benchmark dataset, consisting of >1 billion simulated LHC events corresponding to 10\, fb^{-1} 10 f b − 1 of proton-proton collisions at a center-of-mass energy of 13 TeV. We then review a wide range of anomaly detection and density estimation algorithms, developed in the context of the data challenge, and we measure their performance in a set of realistic analysis environments. We draw a number of useful conclusions that will aid the development of unsupervised new physics searches during the third run of the LHC, and provide our benchmark dataset for future studies at https://www.phenoMLdata.org. Code to reproduce the analysis is provided at https://github.com/bostdiek/DarkMachines-UnsupervisedChallenge.