@Article{NA62collaborationCortinaGil+Husek2019,
author="NA62 collaboration (Cortina Gil, E. et al
and Husek, T.",
title="Searches for lepton number violating K+ decays",
journal="Physics Letters B",
year="2019",
publisher="Elsevier",
volume="797",
pages="134794--9pp",
abstract="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.",
optnote="WOS:000488071200017",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4160), last updated on Tue, 22 Oct 2019 16:14:32 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2019.07.041",
opturl="https://arxiv.org/abs/1905.07770",
opturl="https://doi.org/10.1016/j.physletb.2019.07.041",
language="English"
}