MAGNETO-ν: precision Pu-241 decay measurement to search for keV-sterile neutrino and neutrino mass
ORAL
Abstract
Sterile neutrinos with a mass around 10 keV are warm dark matter candidates. Their mixing with ordinary neutrinos will distort the energy spectra of beta minus decays. The MAGNETO-ν experiment aims to detect these keV sterile neutrinos by accurately measuring the beta decay spectrum of Pu-241 and search for any deviation from theoretical model. The experiment uses magnetic quantum sensors to efficiently captures beta particles from the decay radiation and precisely measures the energy spectrum. This talk presents experimental details and preliminary results from the ongoing experiment at the Lawrence Livermore national laboratory. The application of the data to constrain active neutrino mass will also be discussed.
* This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was supported by the Laboratory Directed Research and Development program of Lawrence Livermore National Laboratory (23-LW-043).
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Presenters
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Chang Lee
Lawrence Livermore National Laboratory
Authors
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Chang Lee
Lawrence Livermore National Laboratory
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Alexander Kavner
Lawrence Livermore National Laboratory
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Xianyi Zhang
Lawrence Livermore Natl Lab
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Tashi Parsons-Davis
Lawrence Livermore National Laboratory
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Xavier Mougeot
CEA Saclay
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Stephen Boyd
University of New Mexico
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Geonbo Kim
Lawrence Livermore National Laboratory