Atomki anomaly in gauged $U(1{)}_R$ symmetric model

Abstract

The Atomki collaboration has reported that unexpected excesses have been observed in the rare decays of Beryllium nucleus. It is claimed that such excesses can suggest the existence of a new boson, called $X$, with the mass of about $17$ MeV. To solve the Atomki anomaly, we consider a model with gauged $U(1{)}_R$ symmetry and identify the new gauge boson with the $X$ boson. We also introduce two $SU(2)$ doublet Higgs bosons and one singlet Higgs boson, and discuss a very stringent constraint from neutrino-electron scattering. It is found that the $U(1{)}_R$ charges of the doublet scalars are determined to evade the constraint. In the end, we find the parameter region in which the Atomki signal and all experimental constraints can be simultaneously satisfied.

25 pages, 4 figures

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Cited by in corpus (14)

• Resonant search for the X17 boson at PADME
• Neutrino Constraints and the ATOMKI X17 Anomaly
• Explaining Atomki anomaly and muon $g-2$ in $U(1{)}_X$ extended flavour violating two Higgs doublet model
• Neutrino and dark matter in a gauged $U(1{)}_R$ symmetry
• Probing for chiral $Z^{\prime }$ gauge boson through scattering measurement experiments
• Robust Limits from Upcoming Neutrino Telescopes and Implications on Minimal Dark Matter Models
• Tests of the Atomki anomaly in lepton pair decays of heavy mesons
• Dirac dark matter, dark radiation, and the type-II seesaw mechanism in alternative $U(1{)}_X$ standard model
• Light $Z^{\prime }$ Signatures at the LHC
• Right handed neutrino production from $Z^{\prime }$ interactions in forward search experiments
• Probing the ATOMKI X17 vector boson using Dalitz decays $V\to P{e}^{+}{e}^{-}$
• An alternative gauged $U(1{)}_R$ symmetric model in light of the CDF II $W$ boson mass anomaly
• Discovery potential of a long-lived partner of inelastic dark matter at MATHUSLA in $U(1{)}_{X_3}$ extension of the standard model
• The X17 with Chiral Couplings