%0 Journal Article
%T Searches for lepton number violating K+ decays
%A NA62 collaboration (Cortina Gil, E. et al
%A Husek, T.
%J Physics Letters B
%D 2019
%V 797
%I Elsevier
%@ 0370-2693
%G English
%F NA62collaborationCortinaGil+Husek2019
%O WOS:000488071200017
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4160), last updated on Tue, 22 Oct 2019 16:14:32 +0000
%X The NA62 experiment at CERN reports a search for the lepton number violating decays K+ -> pi(-)e(+)e(+) and K+ -> pi(-)mu(+)mu(+) using a data sample collected in 2017. No signals are observed, and upper limits on the branching fractions of these decays of 2.2 x 10(-10) and 4.2 x 10(-11) are obtained, respectively, at 90% confidence level. These upper limits improve on previously reported measurements by factors of 3 and 2, respectively.
%R 10.1016/j.physletb.2019.07.041
%U https://arxiv.org/abs/1905.07770
%U https://doi.org/10.1016/j.physletb.2019.07.041
%P 134794-9pp