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Search for the dark photon in $\pi^0$ decays
A sample of $1.69\times 10^7$ fully reconstructed $\pi^0\to\gamma e^+e^-$ decay candidates collected by the NA48/2 experiment at CERN in 2003--2004 is analysed to search for the dark photon ($A'$) production in the $\pi^0\to\gamma A'$ decay followed by the prompt $A'\to e^+e^-$ decay....
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| Lenguaje: | eng |
| Publicado: |
SISSA
2015
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| Acceso en línea: | http://cds.cern.ch/record/2058549 |