Improved limits on a hypothetical X(16.7) boson and a dark photon decaying into $e^+e^-$ pairs

The improved results on a direct search for a new X(16.7  MeV) boson that could explain the anomalous excess of e+e- pairs observed in the decays of the excited Be*8 nuclei (“Berillium or X17 anomaly”) are reported. Interestingly, new recent results in the nuclear transitions of another nucleus, He4...

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Detalles Bibliográficos
Autores principales: Banerjee, D., Bernhard, J., Burtsev, V.E., Chumakov, A.G., Cooke, D., Crivelli, P., Depero, E., Dermenev, A.V., Donskov, S.V., Dusaev, R.R., Enik, T., Charitonidis, N., Feshchenko, A., Frolov, V.N., Gardikiotis, A., Gerassimov, S.G., Gninenko, S.N., Hösgen, M., Jeckel, M., Kachanov, V.A., Karneyeu, A.E., Kekelidze, G., Ketzer, B., Kirpichnikov, D.V., Kirsanov, M.M., Kolosov, V.N., Konorov, I.V., Kovalenko, S.G., Kramarenko, V.A., Kravchuk, L.V., Krasnikov, N.V., Kuleshov, S.V., Lyubovitskij, V.E., Lysan, V., Matveev, V.A., Mikhailov, Yu V., Molina Bueno, L., Peshekhonov, D.V., Polyakov, V.A., Radics, B., Rojas, R., Rubbia, A., Samoylenko, V.D., Shchukin, D., Tikhomirov, V.O., Tlisova, I., Tlisov, D.A., Toropin, A.N., Trifonov, A. Yu, Vasilishin, B.I., Vasquez Arenas, G., Volkov, P.V., Volkov, V.Yu., Ulloa, P.
Lenguaje:eng
Publicado: 2019
Materias:
hep-ex
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.101.071101
http://cds.cern.ch/record/2705626

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