Convolutional neural network for multiple particle identification in the MicroBooNE liquid argon time projection chamber

MicroBooNE Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

We present the multiple particle identification (MPID) network, a convolutional neural network for multiple object classification, developed by MicroBooNE. MPID provides the probabilities that an interaction includes an e-,γ, μ-, π±, and protons in a liquid argon time projection chamber single readout plane. The network extends the single particle identification network previously developed by Micro-BooNE [Convolutional neural networks applied to neutrino events in a liquid argon time projection chamber, R. Acciarri et al. J. Instrum. 12, P03011 (2017)]. MPID takes as input an image either cropped around a reconstructed interaction vertex or containing only activity connected to a reconstructed vertex, therefore relieving the tool from inefficiencies in vertex finding and particle clustering. The network serves as an important component in MicroBooNE's deep-learning-based ?e search analysis. In this paper, we present the network's design, training, and performance on simulation and data from the MicroBooNE detector.

Original languageEnglish (US)
Article number092003
JournalPhysical Review D
Volume103
Issue number9
DOIs
StatePublished - May 1 2021

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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