Related Experiment Video
Updated: Jun 11, 2025

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
Published on: May 3, 2019
Search for Leptonic Decays of Dark Photons at NA62
E Cortina Gil1, J Jerhot1, A Kleimenova1
1Université Catholique de Louvain, Louvain-La-Neuve, Belgium.
Abstract:
The NA62 experiment at CERN, configured in beam-dump mode, has searched for dark photon decays in flight to electron-positron pairs using a sample of 1.4×10^{17} protons on dump collected in 2021. No evidence for a dark photon signal is observed. The combined result for dark photon searches in lepton-antilepton final states is presented and a region of the parameter space is excluded at 90% confidence level, improving on previous experimental limits for dark photon mass values between 50 and 600 MeV/c^{2} and coupling values in the range 10^{-6} to 4×10^{-5}. An interpretation of the e^{+}e^{-} search result in terms of the emission and decay of an axionlike particle is also presented.
Related Concept Videos
Photoluminescence: Applications
Deactivation Processes: Jablonski Diagram
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
The de Broglie Wavelength
¹³C NMR: ¹H–¹³C Decoupling
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...

