New Physics Suggested by Atomki Anomaly

New Physics Suggested by Atomki Anomaly

We consider several extensions of the Standard Model (SM) which can explain the anomalies observed by the Atomki collaboration in the decay of excited states of Beryllium via a new boson with a mass around 17 MeV yielding e+e− pairs. We show how both spin-0 and 1 solutions are possible and describe...

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Veröffentlicht in:Frontiers in physics 2019-05, Vol.7
Hauptverfasser: Delle Rose, Luigi, Khalil, Shaaban, King, Simon J. D., Moretti, Stefano
Format: Artikel
Sprache:eng
Schlagworte:
2HDM
Atomki anomaly
low scale
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Zusammenfassung:We consider several extensions of the Standard Model (SM) which can explain the anomalies observed by the Atomki collaboration in the decay of excited states of Beryllium via a new boson with a mass around 17 MeV yielding e+e− pairs. We show how both spin-0 and 1 solutions are possible and describe the Beyond the SM (BSM) scenarios that can accommodate these. They include BSM frameworks with either an enlarged Higgs, or gauge sector, or both.
ISSN:2296-424X
2296-424X
DOI:10.3389/fphy.2019.00073