A search for instability of nucleons bound in Xe136 nuclei is reported with 223 kg·yr exposure of Xe136 in the EXO-200 experiment. Lifetime limits of 3.3×1023 and 1.9×1023 yr are established for nucleon decay to Sb133 and Te133, respectively. These are the most stringent to date, exceeding the prior decay limits by a factor of 9 and 7, respectively.

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Persistent URL dx.doi.org/10.1103/PhysRevD.97.072007
Journal Physical Review D
Albert, J.B. (J. B.), Anton, G. (G.), Badhrees, I. (I.), Barbeau, P.S. (P. S.), Bayerlein, R. (R.), Beck, D. (D.), … Ziegler, T. (T.). (2018). Search for nucleon decays with EXO-200. Physical Review D, 97(7). doi:10.1103/PhysRevD.97.072007