Jet-images — deep learning edition

Nov 16, 2015
31 pages
Published in:
  • JHEP 07 (2016) 069
  • Published: Jul 13, 2016
e-Print:

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Abstract: (Springer)
Building on the notion of a particle physics detector as a camera and the collimated streams of high energy particles, or jets, it measures as an image, we investigate the potential of machine learning techniques based on deep learning architectures to identify highly boosted W bosons. Modern deep learning algorithms trained on jet images can out-perform standard physically-motivated feature driven approaches to jet tagging. We develop techniques for visualizing how these features are learned by the network and what additional information is used to improve performance. This interplay between physicallymotivated feature driven tools and supervised learning algorithms is general and can be used to significantly increase the sensitivity to discover new particles and new forces, and gain a deeper understanding of the physics within jets.
Note:
  • 32 pages, 24 figures. Version that is published in JHEP
  • Jet substructure
  • Hadron-Hadron scattering (experiments)
  • boosted particle
  • W: boosted particle
  • track data analysis: jet
  • W'
  • collimator
  • sensitivity
  • performance
  • PYTHIA
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