%0 Journal Article
%T Search for production of an invisible dark photon in (0) decays
%A NA62 Collaboration (Cortina Gil, E. et al
%A Husek, T.
%J Journal of High Energy Physics
%D 2019
%V 05
%N 5
%I Springer
%@ 1029-8479
%G English
%F NA62CollaborationCortinaGil+Husek2019
%O WOS:000469459200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4028), last updated on Wed, 12 Jun 2019 14:52:54 +0000
%X The results of a search for (0) decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 x 10(8) tagged (0) mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60-110 MeV/c(2). The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay 0improving the current limit by more than three orders of magnitude.
%K Beyond Standard Model
%K Exotics
%K Fixed target experiments
%K Rare decay
%R 10.1007/JHEP05(2019)182
%U https://arxiv.org/abs/1903.08767
%U https://doi.org/10.1007/JHEP05(2019)182
%P 182-20pp