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Published April 1, 2018 | Published + Submitted
Journal Article Open

Search for nucleon decays with EXO-200

Abstract

A search for instability of nucleons bound in ^(136)Xe nuclei is reported with 223 kg·yr exposure of ^(136)Xe in the EXO-200 experiment. Lifetime limits of 3.3×10^(23) and 1.9×10^(23)  yr 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.

Additional Information

© 2018 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. Received 20 October 2017; published 10 April 2018. EXO-200 is supported by the DOE and NSF in the United States, NSERC in Canada, SNF in Switzerland, Institute for Basic Science (IBS) in Korea, Russian Foundation for Basic Research (RFBR) in Russia, DFG in Germany, and CAS and International Science and Technology Cooperation Project (ISTCP) in China. EXO-200 data analysis and simulation uses resources of the National Energy Research Scientific Computing Center (NERSC). We gratefully acknowledge the KARMEN collaboration for supplying the cosmic-ray veto detectors, and the WIPP for their hospitality.

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Submitted - 1710.07670.pdf

Published - PhysRevD.97.072007.pdf

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Created:
August 19, 2023
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August 19, 2023