Speaker
Emilio Depero
(ETH Zurich (CH))
Description
NA64 is a fixed target experiment at the CERN SPS aiming at a sensitive search for hidden sectors. The A′, called dark photon, could be generated in the reaction e−Z→e−ZA′ of 100 GeV electrons dumped against an active target which is followed by the prompt invisible decay A′→χχ. The experimental signature of this process would be a clean event with an isolated electron and large missing energy in the detector. Results on the search for the visible A' -> e+e− decays, as well as X→ e+e− decay of a new 17 MeV X boson, which could explain a recently observed anomaly in the 8Be transitions will be also discussed.
Authors
Emilio Depero
(ETH Zurich (CH))
Paolo Crivelli
(ETH Zurich (CH))
Laura Molina Bueno
(ETH Zurich (CH))
Balint Radics
(ETH Zurich (CH))
Co-author
Collaboration NA64
(CERN)
