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Search for the dark photon in $\pi^0$ decays
A sample of 1.69 x 10^7 fully reconstructed pi^0 -> gammae^+e^- in the kinematic range m_ee > 10MeV/c^2 with a negligible background contamination collected by the NA48/2 experiment at CERN in 2003-04 is analysed to search for the dark photon (A') via the decay chain pi;^0 -> gammaA�...
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| Lenguaje: | eng |
| Publicado: |
2016
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| Acceso en línea: | https://dx.doi.org/10.1051/epjconf/201612604035 http://cds.cern.ch/record/2282507 |