Atomki anomaly and dark matter in a radiative seesaw model with gauged $B-L$ symmetry

Abstract

Motivated by recently reported anomalies in a decay of an excited state of beryllium by the Atomki collaboration, we study a radiative seesaw model with gauged $B-L$ symmetry and a $Z_2$ parity. Assuming that the anomalies originate from the decay of the $B-L$ gauge boson followed by the nuclear decay, the mass of the lightest right-handed neutrino or the dark matter candidate can be determined below $10$ GeV. We show that for this mass range, the model can explain the anomalies in the beryllium decay and the relic dark matter abundance consistent with neutrino masses. We also predict its spin-independent cross section in direct detection experiments for this mass range.

16 pages, 3 figures; 1 figure added, final results updated, published version in PRD

References in corpus (12)

• Results from a search for dark matter in the complete LUX exposure
• Projected Sensitivity of the SuperCDMS SNOLAB experiment
• Protophobic Fifth Force Interpretation of the Observed Anomaly in ${}^8$Be Nuclear Transitions
• Particle Physics Models for the 17 MeV Anomaly in Beryllium Nuclear Decays
• Results on low mass WIMPs using an upgraded CRESST-II detector
• Masses of dark matter and neutrino from TeV scale spontaneous $U(1{)}_{B-L}$ breaking
• Light Weakly Coupled Axial Forces: Models, Constraints, and Projections
• Neutrino Mass and Dark Matter from Gauged $U(1{)}_{B-L}$ Breaking
• Realistic model for a fifth force explaining anomaly in ${}^{8}B{e}^{\ast }\to {}^{8}Be{e}^{+}{e}^{-}$ Decay
• Protophobic Light Vector Boson as a Mediator to the Dark Sector
• Right-handed Sneutrino Dark Matter in Supersymmetric B-L Model
• The new interaction suggested by the anomalous ${}^8$Be transition sets a rigorous constraint on the mass range of dark matter

Cited by in corpus (32)

• From the trees to the forest: a review of radiative neutrino mass models
• Dark forces coupled to non-conserved currents
• Light Axial Vectors, Nuclear Transitions, and the ${}^8$Be Anomaly
• The $B-L$ Scotogenic Models for Dirac Neutrino Masses
• Explanation of the 17 MeV Atomki Anomaly in a $U(1{)}^{\prime }$-Extended 2-Higgs Doublet Model
• Dynamical Evidence For a Fifth Force Explanation of the ATOMKI Nuclear Anomalies
• QED Meson Description of the X17 and Other Anomalous Particles
• Atomki Anomaly in Family-Dependent $U(1{)}^{\prime }$ Extension of the Standard Model
• Anomalies in ${}^8$Be nuclear transitions and $(g-2{)}_{e,\mu }$: towards a minimal combined explanation
• Implication of the hidden sub-GeV bosons for the $(g-2{)}_{\mu }$, ${}^8$Be-${}^4$He anomaly, proton charge radius, EDM of fermions and dark axion portal
• Can a protophobic vector boson explain the ATOMKI anomaly?
• New Physics Suggested by Atomki Anomaly
• Is There a Sign of New Physics in Beryllium Transitions?
• A toy model of hyperboloidal approach to quasinormal modes
• 17 MeV Atomki anomaly from short-distance structure of spacetime
• Atomki anomaly in gauged $U(1{)}_R$ symmetric model
• Loop suppressed light fermion masses with $U(1{)}_R$ gauge symmetry
• Explaining Atomki anomaly and muon $g-2$ in $U(1{)}_X$ extended flavour violating two Higgs doublet model
• Majorana Dark Matter in a new B-L model
• Two-loop Induced Majorana Neutrino Mass in a Radiatively Induced Quark and Lepton Mass Model
• Atomic Physics Constraints on the X Boson
• Investigation of CMB constraints for dark matter-helium scattering
• Dark Photon Dark Matter in the minimal $B-L$ Model
• Searching for new light gauge bosons at $e^{+}{e}^{-}$ colliders
• Explanation of the 511 keV line: Cascade annihilating dark matter with the ${}^8$Be anomaly
• Could the 21-cm absorption be explained by the dark matter suggested by ${}^8$Be transitions?
• TeV- and MeV-physics out of an $S{U}_L(2)\times U_R(1{)}_J\times U(1{)}_K$ model
• Naturalness and a light $Z^{\prime }$
• Realization of Sneutrino Self-interacting Dark Matter in the Focus Point Supersymmetry
• Classical electrodynamics and gauge symmetry of the X-boson
• Interpretation of the Galactic gamma-ray excess with the dark matter indicated by ${}^8$Be and ${}^4$He anomalous transitions
• Intergenerational gauged $B-L$ model and its implication to muon $g-2$ anomaly and thermal dark matter