Majorons Without Majorana Masses and Neutrinoless Double Beta Decay

Abstract

We explain excess events near the endpoints of the double beta decay spectra of several elements, using the neutrinoless emission of massless Goldstone bosons. Models with scalars carrying lepton number $-2$ are proposed for this purpose so that ordinary neutrinoless double beta decay is forbidden, and we can raise the scale of global symmetry breaking above the 10 keV scale needed for observable emission of conventional Majorons in double beta decay. The electron spectrum has a different shape, and the rate depends on different nuclear matrix elements, than for the emission of ordinary Majorons.

13 pages, 1 figure (not included), McGill/92-22

Cited by in corpus (51)

• Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
• Neutrinos and Collider Physics
• Double Beta Decay
• Neutrinoless Double Beta Decay and Physics Beyond the Standard Model
• The event generator DECAY4 for simulation of double beta processes and decay of radioactive nuclei
• Do solar neutrinos decay?
• Double Beta Decays of Mo-100 and Nd-150
• On the observability of Majoron emitting double beta decays
• Majoron Dark Matter and Constraints on the Majoron-Neutrino Coupling
• Results on $\beta \beta$ decay with emission of two neutrinos or Majorons in ${}^{76}$Ge from GERDA Phase I
• Neutrino Masses
• Multi-Majoron Modes for Neutrinoless Double-Beta Decay
• Cosmological Constraints on Invisible Neutrino Decays Revisited
• Neutrino Self-Interactions: A White Paper
• Limits on different Majoron decay modes of ${}^{100}$Mo and ${}^{82}$Se for neutrinoless double beta decays in the NEMO-3 experiment
• Revisiting Neutrino Self-Interaction Constraints from $Z$ and $\tau$ decays
• A New Class of Majoron-Emitting Double-Beta Decays
• Final results of the Aurora experiment to study 2$\beta$ decay of ${}^{116}$Cd with enriched ${}^{116}$CdWO${}_4$ crystal scintillators
• Supernova Constraints on Massive (Pseudo)Scalar Coupling to Neutrinos
• Neutrino Self-Interactions and Double Beta Decay
• Astrophysical and Terrestrial Constraints on Singlet Majoron Models
• Measurement of the half-life of the two-neutrino double beta decay of Ge-76 with the Gerda experiment
• Double beta decay experiments
• Neutrino mass, bulk majoron and neutrinoless double beta decay
• Neutrinoless double-beta decay with massive scalar emission
• Double beta decay: present status
• Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay
• Neutrino meets ultralight dark matter: $0\mathbf{\nu \beta \beta }$ decay and cosmology
• Neutrino bound states and bound systems
• Double beta decay of sigma^- hyperons
• Bounds on new Majoron models from the Heidelberg-Moscow-Experiment
• Main features of detectors and isotopes to investigate double beta decay with increased sensitivity
• Probing Beyond the Standard Model Physics with Double-beta Decays
• Nuclear moments for the neutrinoless double beta decay
• Two neutrino double beta decay within the $\xi$-approximation
• The background model of the CUPID-Mo $0\nu \beta \beta$ experiment
• Testing neutrino instability with active galactic nuclei
• Tidal Disruption Events and Dark Matter Scatterings with Neutrinos and Photons
• Exact evaluation of the nuclear form factor for new kinds of majoron emission in neutrinoless double beta decay
• Majoron Decay in Matter
• Double beta decay experiments
• Charged Majoron Emission in Neutrinoless Double Beta Decay
• Nuclear matrix elements of neutrinoless double-beta decay in covariant density functional theory with different mechanisms
• A Common Explanation for the Atmospheric, Solar-Neutrino and Double Beta Decay Anomalies
• Neutrino decays as a natural explanation of the neutrino mass tension
• Classical Nambu-Goldstone fields
• Implications of a Purely Right-Handed Bottom Quark Decay Coupling
• Probing Dark Sector Particles Coupling to Neutrinos with Double Beta Decay
• Neutrinoless double beta decay without Majorana neutrinos
• Bulk Majorons at Colliders
• Neutrino Mass Physics