Neutral-current neutrino cross section and expected supernova signals for \(^{40}\)Ar from a three-fold increase in the magnetic dipole strength

In view of the great interest in liquid argon neutrino detectors, the \(^{40}\)Ar(\(\gamma,\gamma'\))\(^{40}\)Ar\(^{*}\) reaction was revisited to guide a calculation of the neutral current neutrino cross section at supernova energies. Using the nuclear resonance fluorescence technique with a m...

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Bibliographic Details
Published in:arXiv.org 2022-10
Main Authors: Tornow, W, Tonchev, A P, Finch, S W, Krishichayan, Wang, X B, Hayes, A C, Yeomans, H G D, Newmark, D A
Format: Article
Language:English
Subjects:
Argon
Cross-sections
Linear polarization
Magnetic dipoles
Neutral currents
Neutrinos
Photon beams
Resonance fluorescence
Online Access:Get full text
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Summary:In view of the great interest in liquid argon neutrino detectors, the \(^{40}\)Ar(\(\gamma,\gamma'\))\(^{40}\)Ar\(^{*}\) reaction was revisited to guide a calculation of the neutral current neutrino cross section at supernova energies. Using the nuclear resonance fluorescence technique with a monoenergetic, 99% linearly polarized photon beam, we report a three-fold increase in magnetic dipole strength at around 10 MeV in \(^{40}\)Ar. Based on shell-model calculations, and using the experimentally identified transitions, the neutral current neutrino cross sections for low-energy reactions on \(^{40}\)Ar are calculated.
ISSN:2331-8422
DOI:10.48550/arxiv.2210.14316