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Search for nucleon decays with EXO-200

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arxiv 1710.07670 v5 pith:YU6FXSTO submitted 2017-10-20 hep-ex nucl-exphysics.ins-det

Search for nucleon decays with EXO-200

classification hep-ex nucl-exphysics.ins-det
keywords decayexo-200limitsnucleonrespectivelysearchtimesbound
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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A search for instability of nucleons bound in $^{136}$Xe nuclei is reported with 223 kg$\cdot$yr exposure of $^{136}$Xe in the EXO-200 experiment. Lifetime limits of 3.3$\times 10^{23}$ and 1.9$\times 10^{23}$ yrs are established for nucleon decay to $^{133}$Sb and $^{133}$Te, 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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