First observation of low energy electron neutrinos in a liquid argon time projection chamber

(ArgoNeuT Collaboration)

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The capabilities of liquid argon time projection chambers (LArTPCs) to reconstruct the spatial and calorimetric information of neutrino events have made them the detectors of choice in a number of experiments, specifically those looking to observe electron neutrino (νe) appearance. The LArTPC promises excellent background rejection capabilities, especially in this "golden" channel for both short and long baseline neutrino oscillation experiments. We present the first experimental observation of electron neutrinos and antineutrinos in the ArgoNeut LArTPC, in the energy range relevant to DUNE and the Fermilab Short Baseline Neutrino Program. We have selected 37 electron candidate events and 274 gamma candidate events, and measured an 80% purity of electrons based on a topological selection. Additionally, we present a separation of electrons from gammas using calorimetric energy deposition, demonstrating further separation of electrons from background gammas.

Original languageEnglish (US)
Article number072005
JournalPhysical Review D
Volume95
Issue number7
DOIs
StatePublished - Apr 1 2017

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'First observation of low energy electron neutrinos in a liquid argon time projection chamber'. Together they form a unique fingerprint.

Cite this