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Trapped Ion Quantum Computing Superconducting Qubits

Limits on the Existence of sub-MeV Sterile Neutrinos from the Decay of 7Be in Superconducting Quantum Sensors

arXiv
Authors: S. Friedrich, G. B. Kim, C. Bray, R. Cantor, J. Dilling, S. Fretwell, J. A. Hall, A. Lennarz, V. Lordi, P. Machule, D. McKeen, X. Mougeot, F. Ponce, C. Ruiz, A. Samanta, W. K. Warburton, K. G. Leach

Year

2020

Paper ID

19840

Status

Preprint

Abstract Read

~2 min

Abstract Words

117

Citations

N/A

Abstract

Sterile neutrinos are natural extensions to the standard model of particle physics and provide a possible portal to the dark sector. We report a new search for the existence of sub-MeV sterile neutrinos using the decay-momentum reconstruction technique in the decay of 7Be. The experiment measures the total energy of the 7Li daughter atom from the electron capture decay of 7Be implanted into sensitive superconducting tunnel junction (STJ) quantum sensors. This first experiment presents data from a single STJ operated at a low count rate for a net total of 28 days, and provides exclusion limits on sterile neutrinos in the mass range from 100 to 850 keV that improve upon previous work by up to an order of magnitude.

Why This Paper Matters

  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • Sterile neutrinos are natural extensions to the standard model of particle physics and provide a possible portal to the dark sector.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2010.09603 [2] arXiv https://arxiv.org/abs/2010.09603 [3] Publisher https://arxiv.org/abs/2010.09603

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