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Search for Periodic Modulations of the Rate of Double-Beta Decay of $^{100}$Mo in the NEMO-3 Detector

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arxiv 2011.07657 v1 pith:F3BLN4Y4 submitted 2020-11-15 nucl-ex hep-ex

classification nucl-exhep-ex
keywords double-betamodulationsperiodicdatadecaydecayshalf-lifenemo-3
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Double-beta decays of $^{100}$Mo from the 6.0195-year exposure of a 6.914 kg high-purity sample were recorded by the NEMO-3 experiment that searched for neutrinoless double-beta decays. These ultra-rare transitions to $^{100}$Ru have a half-life of approximately $7\times10^{18}$ years, and have been used to conduct the first ever search for periodic variations of this decay mode. The Lomb-Scargle periodogram technique, and its error-weighted extension, were employed to look for periodic modulations of the half-life. Monte Carlo modeling was used to study the modulation sensitivity of the data over a broad range of amplitudes and frequencies. Data show no evidence of modulations with amplitude greater than 2.5% in the frequency range of $0.33225\,{\rm y^{-1}}$ to $365.25\,{\rm y^{-1}}$.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Sensitivity of neutrinoless double beta decays from a combined analysis of ground and excited states

    hep-ph 2025-08 unverdicted novelty 5.0 of 10

    Combined analysis of 0νββ decays to ground and excited states can significantly enhance experimental sensitivity depending on NME predictions.

  2. Sensitivity of neutrinoless double beta decays from a combined analysis of ground and excited states

    hep-ph 2025-08 unverdicted novelty 5.0 of 10

    A multi-channel analysis of ground and excited state 0νββ transitions could enhance the discovery potential of next-generation liquid xenon experiments.

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