Publications [#372386] of Calvin R. Howell

Papers Published
  1. Haselschwardt, SJ; Lenardo, BG; Daniels, T; Finch, SW; Friesen, FQL; Howell, CR; Malone, CR; Mancil, E; Tornow, W, Observation of Low-Lying Isomeric States in ^{136}Cs: A New Avenue for Dark Matter and Solar Neutrino Detection in Xenon Detectors., Physical review letters, vol. 131 no. 5 (August, 2023), pp. 052502 [doi] .

    Abstract:
    We report on new measurements establishing the existence of low-lying isomeric states in ^{136}Cs using γ rays produced in ^{136}Xe(p,n)^{136}Cs reactions. Two states with O(100)  ns lifetimes are placed in the decay sequence of the ^{136}Cs levels that are populated in charged-current interactions of solar neutrinos and fermionic dark matter with ^{136}Xe. Xenon-based experiments can therefore exploit a delayed-coincidence tag of these interactions, greatly suppressing backgrounds to enable spectroscopic studies of solar neutrinos and dark matter.

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