Explanation of the Beryllium Anomaly in a U(1)'-Extended 2-Higgs Doublet Model

2017/08/29 by Luigi Delle Rose, Shaaban Khalil, Rose, Luigi Delle +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1708.08806

openalex publication_date 2017/08/29 · openalex created_date 2022/10/02 · openalex updated_date 2026/07/28

Abstract

We consider an extension of the Standard Model with an extra gauged U(1)' symmetry in presence of a 2-Higgs Doublet Model structure of the scalar sector. We show that this scenario is able to explain the anomaly observed by the Atomki collaboration in the decay of an excited state of Beryllium via a light spin-1 Z' with a mass of 17 MeV.

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