A search for an invisible dark photon A' has been performed, exploiting the efficient photon-veto capability and high resolution tracking of the NA62 detector at CERN. The signal stems from the chain K+ → π+π0 followed by π0 → A'γ. No significant statistical excess has been identified. Upper limits on the dark photon coupling to the ordinary photon as a function of the dark photon mass have been set, improving on the previous limits over the mass range 60–110 MeV/c2

Mirra, M., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2019). Search for production of an invisible dark photon from π0 decays at NA62. In Proceedings of the 54th Rencontres de Moriond - 2019 QCD and High Energy Interactions (pp.73-76). ARISF.

Search for production of an invisible dark photon from π0 decays at NA62

Ammendola R.;Bonaiuto V.;Sargeni F.;
2019-01-01

Abstract

A search for an invisible dark photon A' has been performed, exploiting the efficient photon-veto capability and high resolution tracking of the NA62 detector at CERN. The signal stems from the chain K+ → π+π0 followed by π0 → A'γ. No significant statistical excess has been identified. Upper limits on the dark photon coupling to the ordinary photon as a function of the dark photon mass have been set, improving on the previous limits over the mass range 60–110 MeV/c2
54th Rencontres de Moriond on QCD and High Energy Interactions 2019
Aosta Valley, ita
2019
Belgian Science Policy (BSP)
Rilevanza internazionale
2019
Settore FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
English
Intervento a convegno
Mirra, M., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., et al. (2019). Search for production of an invisible dark photon from π0 decays at NA62. In Proceedings of the 54th Rencontres de Moriond - 2019 QCD and High Energy Interactions (pp.73-76). ARISF.
Mirra, M; Aliberti, R; Ambrosino, F; Ammendola, R; Angelucci, B; Antonelli, A; Anzivino, G; Arcidiacono, R; Bache, T; Barbanera, M; Bernhard, J; Biagi...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/262489
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