Publication: Search for Lepton Number and Flavor Violation in and Decays
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2021
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Searches for the lepton number violating decay and the lepton flavor violating and decays are reported using data collected by the NA62 experiment at CERN in 2017-2018. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level: , and . These results improve by 1 order of magnitude over previous results for these decay modes. © 2021 Published by the American Physical Society
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Search for Lepton Number and Flavor Violation in and Decays / Aliberti, R. [et al.] // Physical Review Letters. - 2021. - 127. - № 13. - 10.1103/PhysRevLett.127.131802