Investigating two-zero texture in the light of gauged Type-II seesaw

Abstract

Neutrino oscillation, discovered over two decades ago, confirmed that neutrinos have nonzero masses. Since then, two mass-squared differences have been measured with unprecedented precision, yet the absolute neutrino mass scale remains unknown. Additionally, the fundamental symmetry governing the neutrino mixing pattern is still undetermined. Among various theoretical possibilities, the two-zero texture in the neutrino mass matrix ($m_{\nu }$) stands out as an attractive framework due to its reduced number of free parameters, enabling definite predictions for the unknown parameters of the PMNS matrix. In this work, we present a comprehensive analysis of the two-zero texture, focusing on its implications for the Dirac CP phase ($\delta$), the Majorana phases ($\rho$, $\sigma$) and the effective Majorana mass ($m_{\beta \beta }$), the latter being crucial for neutrinoless double beta decay. We find that for certain two-zero textures, $m_{\beta \beta }$ reaches a few tens of meV, placing it within the sensitivity range of KamLAND-Zen. Furthermore, we demonstrate how a two-zero texture can naturally emerge in a well-motivated neutrino mass model, specifically the gauged Type-II seesaw mechanism, which requires multiple scalar triplets. Notably, some of the two-zero patterns cannot be realized in this framework, as more than two independent zeros appear in $m_{\nu }$. Finally, we discuss key phenomenological consequences of the gauged Type-II seesaw model.

arXiv comment18 pages, 3 figures, 3 tables, new references added, version published in Physics Letters B

References in corpus (41)

• Evidence for oscillation of atmospheric neutrinos
• Neutrinoless Double-Beta Decay: Status and Prospects
• Neutrino Masses and Leptogenesis with Heavy Higgs Triplets
• Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
• Zeroes of the Neutrino Mass Matrix
• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• $0\nu \beta \beta$ and $2\nu \beta \beta$ nuclear matrix elements in the interacting boson model with isospin restoration
• Texture Zeros and Majorana Phases of the Neutrino Mass Matrix
• The Higgs Potential in the Type II Seesaw Model
• Planck 2018 results. VI. Cosmological parameters
• Gauged L_mu - L_tau Symmetry at the Electroweak Scale
• Gauged $L_{\mu }-L_{\tau }$ with Large Muon Anomalous Magnetic Moment and the Bimaximal Mixing of Neutrinos
• Testing Higgs Triplet Model and Neutrino Mass Patterns
• Two-zero Textures of the Majorana Neutrino Mass Matrix and Current Experimental Tests
• Vacuum Stability, Perturbativity, EWPD and Higgs-to-diphoton rate in Type II Seesaw Models
• A Flavor Symmetry for quasi-degenerate Neutrinos: L_mu-L_tau
• Neutrinoless $\beta \beta$ decay mediated by the exchange of light and heavy neutrinos: The role of nuclear structure correlations
• The calculation of the neutrinoless double-beta decay matrix element within the realistic shell model
• The $0\nu \beta \beta$-decay nuclear matrix element for light and heavy neutrino mass mechanisms from deformed QRPA cacluations for ${}^{76}$Ge, ${}^{82}$Se, ${}^{130}$Te, ${}^{136}$Xe and ${}^{150}$Nd with isospin restoration
• A complete survey of texture zeros in the lepton mass matrices
• Degeneracy between ${\theta }_{23}$ octant and neutrino non-standard interactions at DUNE
• Lepton flavor violation in the triplet Higgs model
• Higgs Vacuum Stability, Neutrino Mass, and Dark Matter
• Scalar sector of the 3 3 1 model with three Higgs triplets
• Two-zero Majorana textures in the light of the Planck results
• Leptonic New Force and Cosmic-ray Boosted Dark Matter for the XENON1T Excess
• On a model with two zeros in the neutrino mass matrix
• Neutrino Mass and Dark Matter in light of recent AMS-02 results
• Phenomenology of left-right symmetric dark matter
• Low scale type II seesaw: Present constraints and prospects for displaced vertex searches
• Revisiting the high-scale validity of Type-II seesaw model with novel LHC signature
• Near Maximal Atmospheric Neutrino Mixing in Neutrino Mass Models with Two Texture Zeros
• Neutrinos secretly converting to lighter particles to please both KATRIN and the cosmos
• Soft breaking of $L_{\mu }-L_{\tau }$ symmetry: Light neutrino spectrum and Leptogenesis
• Galactic center GeV gamma-ray excess from dark matter with gauged lepton numbers
• Leptogenesis, radiative neutrino masses and inert Higgs triplet dark matter
• Supersymmetric gauged U(1)${}_{L_{\mu }-L_{\tau }}$ model for neutrinos and the muon $(g-2)$ anomaly
• Neutrino mass from a hidden world and its phenomenological implications
• Doubly charged scalar decays in a type II seesaw scenario with two Higgs triplets
• Distinctive Collider Signals for a Two Higgs Triplet Model
• Explaining Dark Matter and Neutrino Mass in the light of TYPE-II Seesaw Model