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Supernova electron-neutrino interactions with xenon in the nEXO detector
Journal article   Open access   Peer reviewed

Supernova electron-neutrino interactions with xenon in the nEXO detector

S. Hedges, S. Al Kharusi, E. Angelico, J. P. Brodsky, G. Richardson, S. Wilde, A. Amy, A. Anker, I. J. Arnquist, P. Arsenault, …
Physical review. D, v 110(9), 093002
27 Nov 2024
url
https://doi.org/10.1103/physrevd.110.093002View
Published, Version of Record (VoR)Open Access (License Unspecified) Open
url
https://doi.org/10.1103/PhysRevD.110.093002View
Published, Version of Record (VoR) Open

Abstract

Astronomy and AstroPhysics, Physics - Physics of elementary particles and fields, Physics - Nuclear physics and radiation physics
Electron-neutrino charged-current interactions with xenon nuclei were modeled in the nEXO neutrinoless double- β decay detector ( ∼ 5 metric ton, 90% Xe 136 , 10% Xe 134 ) to evaluate its sensitivity to supernova neutrinos. Predictions for event rates and detectable signatures were modeled using the Model of Argon Reaction Low Energy Yields (MARLEY) event generator. We find good agreement between MARLEY’s predictions and existing theoretical calculations of the inclusive cross sections at supernova neutrino energies. The interactions modeled by MARLEY were simulated within the nEXO simulation framework and were run through an example reconstruction algorithm to determine the detector’s efficiency for reconstructing these events. The simulated data, incorporating the detector response, were used to study the ability of nEXO to reconstruct the incident electron-neutrino spectrum and these results were extended to a larger xenon detector of the same isotope enrichment. We estimate that nEXO will be able to observe electron-neutrino interactions with xenon from supernovae as far as 5–8 kpc from Earth, while the ability to reconstruct incident electron-neutrino spectrum parameters from observed interactions in nEXO is limited to closer supernovae. Published by the American Physical Society 2024

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Domestic collaboration
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Astronomy & Astrophysics
Physics, Particles & Fields
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