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Search for dark photons in $\pi^0$ decays at NA48 and NA62
The NA48/2 experiment at CERN collected, between 2003 and 2004, $1.69 \times 10^{7}$ fully reconstructed $\pi^{0} \to \gamma e^{+}e^{-}$ in the kinematic range $m_{ee}$ > 10 MeV/$c^{2}$, with a negligible background contamination. The sample is analysed to search for the presence of dark photons...
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| Lenguaje: | eng |
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2016
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| Acceso en línea: | https://dx.doi.org/10.3969/j.issn.0253-2778.2016.07.009 http://cds.cern.ch/record/2305109 |