SMuK 2023 – scientific programme

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T: Fachverband Teilchenphysik

T 35: Neutrino Astronomy II

T 35.1: Talk

Tuesday, March 21, 2023, 17:00–17:15, POT/0051

Čerenkov ring counting using ensembles of CNNs in ANNIE — •Daniel Tobias Schmid, David Maksimović, Michael Nieslony, and Michael Wurm for the ANNIE collaboration — Johannes Gutenberg-Universität Mainz, Germany

The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a 26-ton Gadolinium-doped water Čerenkov detector located at the Booster Neutrino Beam (BNB) at Fermilab. The scientific aim of ANNIE is the study of the cross-section and the neutron multiplicity of GeV neutrinos in the BNB.

These measurements will benefit next generation neutrino experiments through the reduction of systematics and understanding the underlying interactions.

This talk focuses on using ensembles of Convolutional Neural Networks (CNNs) to perform Čerenkov ring counting to discriminate single- and multi-ring events. The identification of single-ring events will be used in the ANNIE neutron multiplicity analysis to select an exclusive sample of CC-0π events which are predominantly composed of CC-quasielastic interactions, while simultaneously rejecting more inelastic pion-producing interaction types.