Neutrinoless Double-$\beta$ Decay with Nonstandard Majoron Emission

Abstract

We present a novel mode of neutrinoless double beta decay with emission of a light Majoron-like scalar particle phi. We assume it couples via an effective seven-dimensional operator with a (V+A) lepton current and (V+-A) quark currents leading to a long-range contribution that is unsuppressed by the light neutrino mass. We calculate the total double beta decay rate and determine the fully differential shape for this mode. We find that future double beta decay searches are sensitive to scales of the order Lambda_NP ~ 1 TeV for the effective operator and a light scalar m_phi < 0.2 MeV, based on ordinary double beta decay Majoron searches. The angular and energy distributions can deviate considerably from that of two-neutrino double beta decay, which is the main background. We point out possible ultraviolet completions where such an effective operator can emerge.

25 pages, 4 figures, including appendices, matches published version

References in corpus (31)

• Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen
• Additional Nucleon Current Contributions to Neutrinoless Double Beta Decay
• Fermion masses, neutrino oscillations, and proton decay in the light of SuperKamiokande
• Neutrinoless Double Beta Decay and Physics Beyond the Standard Model
• Probing New Physics Models of Neutrinoless Double Beta Decay with SuperNEMO
• Classification of Effective Neutrino Mass Operators
• Shell Model Study of the Double Beta Decays of ${}^{76}$Ge, ${}^{82}$Se and ${}^{136}$Xe
• A different see-saw formula for neutrino masses
• The KeV Majoron as Dark Matter Particle
• Realistic Dirac Leptogenesis
• Mu Problem and Hybrid Inflation in Supersymmetric SU(2)_L x SU(2)_R x U(1)_B-L
• Towards a superformula for neutrinoless double beta decay
• Neutrino Lines from Majoron Dark Matter
• Neutrino Mass and Baryon Asymmetry from Dirac Seesaw
• On the observability of Majoron emitting double beta decays
• Multi-Majoron Modes for Neutrinoless Double-Beta Decay
• The Minimal Phantom Sector of the Standard Model: Higgs Phenomenology and Dirac Leptogenesis
• Nuclear Structure Aspects of the Neutrinoless Double Beta Decay
• Double Beta Decay with Vector Majorons
• Leptogenesis in the type III seesaw mechanism
• Truly Minimal Left-Right Model of Quark and Lepton Masses
• Neutrinoless double-beta decay with massive scalar emission
• Resonant leptogenesis in a predictive SO(10) grand unified model
• Phenomenology of Dirac Neutrinogenesis in Split Supersymmetry
• Analysis of mechanisms that could contribute to the neutrinoless double-beta decay
• Affleck-Dine (Pseudo)-Dirac Neutrinogenesis
• Realistic Neutrinogenesis with Radiative Vertex Correction
• Lepton Flavor Violation and Supersymmetric Dirac Leptogenesis
• Dirac Neutrinos, Dark Energy and Baryon Asymmetry
• Dark matter origins of neutrino masses
• Long-range contributions to double beta decay revisited

Cited by in corpus (19)

• Have pulsar timing array methods detected a cosmological phase transition?
• Neutrino Self-Interactions: A White Paper
• Revisiting Neutrino Self-Interaction Constraints from $Z$ and $\tau$ decays
• Neutrino Self-Interactions and Double Beta Decay
• Beyond-mean-field approaches for nuclear neutrinoless double beta decay in the standard mechanism
• Searching for New Physics in Two-Neutrino Double Beta Decay
• Probing Active-Sterile Neutrino Transition Magnetic Moments with Photon Emission from CE$\nu$NS
• Alternative formulation of left-right symmetry with $B-L$ conservation and purely Dirac neutrinos
• Neutrino Masses and Hubble Tension via a Majoron in MFV
• Neutrino meets ultralight dark matter: $0\mathbf{\nu \beta \beta }$ decay and cosmology
• Light majoron cold dark matter from topological defects and the formation of boson stars
• Neutrino bound states and bound systems
• Probing New Physics with Long-Range Neutrino Interactions: An Effective Field Theory Approach
• Probing Beyond the Standard Model Physics with Double-beta Decays
• Tidal Disruption Events and Dark Matter Scatterings with Neutrinos and Photons
• Probing the Nature of Heavy Neutral Leptons in Direct Searches and Neutrinoless Double Beta Decay
• Inference of neutrino nature and Majorana CP phases from $0\nu \beta \beta$ decays with inverted mass ordering
• Scalarful double beta decay
• Probing Dark Sector Particles Coupling to Neutrinos with Double Beta Decay