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Search for leptonic decays of the dark photon at NA62

The NA62 collaboration
Cortina Gil, Eduardo , Jerhot, Jan , Kleimenova, Alina , Lurkin, Nicolas , Zamkovsky, Michal , Numao, Toshio , Velghe, Bob , Wong, Vincent Wai Sum , Bryman, Douglas , Hives, Zdenko
Phys.Rev.Lett. 133 (2024) 111802, 2024.
https://doi.org/10.17182/hepdata.154438

Abstract (data abstract)
CERN-SPS. Upper limit at 90% CL on dark photon coupling $\varepsilon$ vs mass from a production and decay search and its reinterpretation in terms of model-independent ALPs using data collected by the NA62 experiment.

  • Table 1

    Data from Fig 4 left of the paper (black curve and green and orange bands)

    10.17182/hepdata.154438.v1/t1

    90% CL upper limit in dark photon coupling vs mass parameter space for the $A^\prime \rightarrow e^+e^-$ analysis.

  • Table 2

    Data from Fig 4 right of the paper (black curve and green and orange bands, excluding $A^\prime \rightarrow \mu^+\mu^-$ limit)

    10.17182/hepdata.154438.v1/t2

    90% CL upper limit in dark photon coupling vs mass parameter space for the $A^\prime \rightarrow l^+l^-$ analysis.

  • Table 3

    Data from Data from Fig 5 of the paper (black curves)

    10.17182/hepdata.154438.v1/t3

    90% CL upper limit in $BR(B \rightarrow K a, a \rightarrow e^+e^-)$ vs lifetime $\tau$ parameter space.

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