Search for production of an invisible dark photon from π0 decays at NA62
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abstract
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A search for an invisible dark photon A%27 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%27γ. 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 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license.
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A search for an invisible dark photon A%27 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%2b → π%2bπ0 followed by π0 → A%27γ. 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 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license.
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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%2b → π%2bπ0 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 CERN for the benefit of the ATLAS and CMS Collaborations. CC-BY-4.0 license.
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keywords
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Energy management; Energy resources; Human computer interaction; High resolution; Photon veto; Upper limits; Photons
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