Search for pseudoscalar bosons decaying into e+e- pairs

We report the results of a search for a light pseudoscalar particle $a$ that couples to electrons and decays to $e^+e^-$ performed using the high-energy CERN SPS H4 electron beam. If such pseudoscalar with a mass $\simeq 17$ MeV exists, it could explain the ATOMKI anomaly. We used the NA64 data samp...

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Detalles Bibliográficos
Autores principales: Banerjee, D, Bernhard, J, Burtsev, V, Chumakov, A, Cooke, D, Crivelli, P, Depero, E, Dermenev, A, Donskov, S, Dusaev, R, Enik, T, Charitonidis, N, Feshchenko, A, Frolov, V, Gardikiotis, A, Gerassimov, S, Girod, S, Gninenko, S, Hoesgen, M, Kachanov, V, Karneyeu, A, Kekelidze, G, Ketzer, B, Kirpichnikov, D, Kirsanov, M, Kolosov, V, Konorov, I, Kovalenko, S, Kramarenko, V, Kravchuk, L, Krasnikov, N, Kuleshov, S, Lyubovitskij, V, Lysan, V, Matveev, V, Mikhailov, Yu, Molina, L, Peshekhonov, D, Polyakov, V, Radics, B, Rojas, R, Rubbia, A, Samoylenko, V, Shchukin, D, Tikhomirov, V, Tlisova, I, Toropin, A, Trifonov, A, Vasilishin, B, Vasquez, G, Volkov, P, Volkov, V, Ulloa, P
Lenguaje:eng
Publicado: 2021
Materias:
Particle Physics - Experiment
Acceso en línea:http://cds.cern.ch/record/2765242

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