Charged Lepton Flavour Violation and Neutrinoless Double Beta Decay in Left-Right Symmetric Models with Type I+II Seesaw

Abstract

We study the new physics contributions to neutrinoless double beta decay ($0\nu \beta \beta$) half-life and lepton flavour violation (LFV) amplitude within the framework of the minimal left-right symmetric model (MLRSM). Considering all possible new physics contributions to $0\nu \beta \beta$ and charged lepton flavour violation $\mu \to e\gamma ,\mu \to 3e$ in MLRSM, we constrain the parameter space of the model from the requirement of satisfying existing experimental bounds. Assuming the breaking scale of the left-right symmetry to be $\mathcal{O}(1)$ TeV accessible at ongoing and near future collider experiments, we consider the most general type I+II seesaw mechanism for the origin of tiny neutrino masses. Choosing the relative contribution of the type II seesaw term allows us to calculate the right handed neutrino mass matrix as well as Dirac neutrino mass matrix as a function of the model parameters, required for the calculation of $0\nu \beta \beta$ and LFV amplitudes. We show that such a general type I+II seesaw structure results in more allowed parameter space compared to individual type I or type II seesaw cases considered in earlier works. In particular, we show that the doubly charged scalar masses $M_{\Delta }$ are allowed to be smaller than the heaviest right handed neutrino mass $M_N$ from the present experimental bounds in these scenarios which is in contrast to earlier results with individual type I or type II seesaw showing $M_{\Delta }>M_N$.

23 pages and 21 figures. minor revision, to appear in JHEP. arXiv admin note: text overlap with arXiv:1509.01800

References in corpus (26)

• Observation of electron-antineutrino disappearance at Daya Bay
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Neutrino oscillations refitted
• Limit on Neutrinoless ββ Decay of Xe-136 from the First Phase of KamLAND-Zen and Comparison with the Positive Claim in Ge-76
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Left-Right Symmetry: from LHC to Neutrinoless Double Beta Decay
• Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with 6.6E20 protons on target
• Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities
• Heavy neutrino signals at large hadron colliders
• Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV
• Left-Right Symmetry: from Majorana to Dirac
• Search for heavy neutrinos and right-handed W bosons in events with two leptons and jets in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for the Lepton Flavour Violating Decay ${\mu }^{+}\to e^{+}\gamma$ with the Full Dataset of the MEG Experiment
• TeV Scale Left-Right Symmetry and Large Mixing Effects in Neutrinoless Double Beta Decay
• Lepton Number Violation and `Diracness' of massive neutrinos composed of Majorana states
• Right-Handed Quark Mixings in Minimal Left-Right Symmetric Model with General CP Violation
• Search for heavy neutrinos and W[R] bosons with right-handed couplings in a left-right symmetric model in pp collisions at sqrt(s) = 7 TeV
• Perturbativity and mass scales of Left-Right Higgs bosons
• Dilepton bounds on left-right symmetry at the LHC run II and neutrinoless double beta decay
• Probing the Heavy Neutrinos of Inverse Seesaw Model at the LHeC
• Left-right models with light neutrino mass prediction and dominant neutrinoless double beta decay rate
• A Yukawa coupling parameterization for type I+ II seesaw formula and applications to lepton flavor violation and leptogenesis
• Spontaneous Parity Breaking, Gauge Coupling Unification and Consistent Cosmology with Transitory Domain Walls
• K I 7699 Å and related shell lines during the recent eclipse of $\epsilon$ Aurigae

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• Doubly-Charged Scalars in the Type-II Seesaw Mechanism: Fundamental Symmetry Tests and High-Energy Searches
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• Light Sterile Neutrino and Dark Matter in Left-Right Symmetric Models Without Higgs Bidoublet
• Observable Lepton Number Violation with Predominantly Dirac Nature of Active Neutrinos
• Neutrinoless Double Beta Decay in LRSM with Natural Type-II seesaw Dominance
• Lepton Flavour Violation in Left-Right Theory
• Probing Left-Right Symmetry via Gravitational Waves from Domain Walls
• Neutrinoless double beta decay and lepton flavour violation in broken $\mu -\tau$ symmetric neutrino mass models
• A comparative study of $0\nu \beta \beta$ decay in symmetric and asymmetric left-right model
• Neutrino mass, mixing and muon $g-2$ explanation in $U(1{)}_{L_{\mu }-L_{\tau }}$ extension of left-right theory
• New Physics Search at the CEPC: a General Perspective
• Discriminating the HTM and MLRSM models in collider studies via doubly charged Higgs boson pair production and the subsequent leptonic decays
• Investigating the scalar sector of left-right symmetric models with leptonic probes
• Neutrino mass and leptogenesis in a hybrid seesaw model with a spontaneously broken CP
• Neutrinoless double beta decay in minimal left-right symmetric model with universal seesaw
• Phenomenological Study of Texture Zeros in Lepton Mass Matrices of Minimal Left-Right Symmetric Model
• Neutrinoless double beta decay and the muonium-to-antimuonium transition in models with a doubly charged scalar
• Interplay of type-I and type-II seesaw in neutrinoless double beta decay in left-right symmetric model
• Effect of large light-heavy neutrino mixing and natural type-II seesaw dominance to lepton flavor violation and neutrinoless double beta decay
• Neutrino Mass and Neutrinoless double beta decay in SO(10) GUT with Pati-Salam symmetry
• Construction of lepton mass matrices and TeV-scale phenomenology in the minimal left-right symmetric model
• Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model