C. Chambers

Search for Double Beta Decays of $^{134}$Xe with EXO-200 Phase II

S. Al Kharusi, G. Anton, I. Badhrees, P. S. Barbeau et autres

EXO-200 was a leading double beta decay experiment consisting of a single-phase, enriched liquid xenon time projection chamber filled with an admixture of 80.672% $^{136}$Xe and 19.098% $^{134}$Xe. The detector operated at WIPP between 2010 and 2018 and was designed to search …

Search for two-neutrino double-beta decay of 136Xe to the excited state of 136Ba with the complete EXO-200 dataset*

S. Al Kharusi, G. Anton, I. Badhrees, P. S. Barbeau et autres

Abstract A new search for two-neutrino double-beta (2νββ) decay of 136Xe to the excited state of 136Ba is performed with the full EXO-200 dataset. A deep learning-based convolutional neural network is used to discriminate signal from background events. Signal detection efficiency is …

cn, ca, de, sa, us, ru, kr, ch (code pays fourni par la source)

Search for MeV Electron Recoils from Dark Matter in EXO-200

EXO- Collaboration, S. Al Kharusi, G. Anton, I. Badhrees et autres

We present a search for electron-recoil signatures from the charged-current absorption of fermionic dark matter using the EXO-200 detector. We report an average electron recoil background rate of $6.8 \times 10^{-4}\, \mathrm{cts}\,\mathrm{kg}^{-1}\mathrm{yr}^{-1}\mathrm{keV}^{-1}$ above $4\,\mathrm{MeV}$ and find no statistically significant excess over our …

Search for $2νββ$ decay of $^{136}$Xe to the 0$_1^+$ excited state of $^{136}$Ba with EXO-200

J. B. Albert, D. J. Auty, P. S. Barbeau, Deborah Beck et autres