NA62 reports a Standard Model-compatible measurement of the rare K+→π+νν̄ decay and sets upper limits on heavy neutral lepton couplings from a null-result beam-dump search.
The exclusive vision of rare K and B decays and of the quark mixing in the Standard Model
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NA62 establishes 10^{-11}-level upper limits on K^+ to pi^+ X branching ratios and 10^{-8}-level limits on |U_e4|^2 for heavy neutral leptons between 95 and 126 MeV/c^2, constraining portal models.
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Recent Results from NA62 in Kaon and Dump Mode
NA62 reports a Standard Model-compatible measurement of the rare K+→π+νν̄ decay and sets upper limits on heavy neutral lepton couplings from a null-result beam-dump search.
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New physics searches at NA62
NA62 establishes 10^{-11}-level upper limits on K^+ to pi^+ X branching ratios and 10^{-8}-level limits on |U_e4|^2 for heavy neutral leptons between 95 and 126 MeV/c^2, constraining portal models.