Volpe, R, Akmete, A, Aliberti, R, Ambrosino, F, Ammendola, R, Angelucci, B, Antonelli, A, Anzivino, G, Arcidiacono, R, Bache, T et al (show 90 more authors)
(2022)
Search for lepton number and flavour violation in K<sup>+</sup> and π<sup>0</sup> decays.
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Abstract
The NA62 experiment at CERN collected a large sample of charged kaon decays into final states with multiple charged particles in 2016-2018. This sample provides sensitivities to rare decays with branching ratios as low as 10−11. Searches for the lepton number violating K+ → π−µ+e+ decay and the lepton flavour violating K+ → π+µ−e+ and π0 → µ−e+ decays are reported. No evidence for these decays is found and upper limits of the branching ratios are obtained at 90% confidence level. These results improve by one order of magnitude over previous results for these decay modes.
Item Type: | Conference or Workshop Item (Unspecified) |
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Depositing User: | Symplectic Admin |
Date Deposited: | 13 Oct 2022 16:28 |
Last Modified: | 18 Jan 2023 20:36 |
Open Access URL: | https://pos.sissa.it/380/426/ |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3165405 |