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

Search for production of an invisible dark photon from π0 decays at NA62 / Mirra, M., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Bache, T., Barbanera, M., Bernhard, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Bloch-Devaux, B., Bonaiuto, V., Boretto, M., Bragadireanu, M., et al.. - (2019), pp. 73-76. (54th Rencontres de Moriond on QCD and High Energy Interactions 2019 Aosta Valley, ita 2019).

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

Bizzeti A.;
2019

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
2019
54th Rencontres de Moriond on QCD and High Energy Interactions 2019
Aosta Valley, ita
2019
73
76
Mirra, M.; Aliberti, R.; Ambrosino, F.; Ammendola, R.; Angelucci, B.; Antonelli, A.; Anzivino, G.; Arcidiacono, R.; Bache, T.; Barbanera, M.; Bernhard...espandi
Search for production of an invisible dark photon from π0 decays at NA62 / Mirra, M., Aliberti, R., Ambrosino, F., Ammendola, R., Angelucci, B., Antonelli, A., Anzivino, G., Arcidiacono, R., Bache, T., Barbanera, M., Bernhard, J., Biagioni, A., Bician, L., Biino, C., Bizzeti, A., Blazek, T., Bloch-Devaux, B., Bonaiuto, V., Boretto, M., Bragadireanu, M., et al.. - (2019), pp. 73-76. (54th Rencontres de Moriond on QCD and High Energy Interactions 2019 Aosta Valley, ita 2019).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1221590
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