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The seesaw mechanism at arbitrary order: disentangling the small scale from the large scale
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The seesaw mechanism at arbitrary order: disentangling the small scale from the large scale
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We develop a recipe which allows one to recursively and uniquely decouple the large scale from the small scale in mass matrices of the seesaw type, up to any order in the inverse of the large scale. Our method allows one to calculate the mass matrix of the light neutrinos with arbitrary precision. The same method can be applied in the case of quark mass matrices in an extension of the Standard Model with vector-like quarks which have mass terms at a scale much higher than the electroweak scale.
Forward citations
Cited by 4 Pith papers
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Multi-component Dark Matter in a Novel Three-Loop Inverse Scotogenic Seesaw Model
A three-loop inverse scotogenic seesaw with residual Z2⊗Z3 yields viable multi-component dark matter and approximate resonant leptogenesis while fitting neutrino and CLFV bounds.
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Exact constraints on family-separated seesaw relations and their phenomenological consequences
Under exact family-separated seesaw alignment, the neutrino Yukawa columns are exactly orthogonal and all standard nonresonant one-loop decay asymmetries vanish, invalidating the proposed CP-asymmetry correlation.
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TeV Scale Quark-Lepton Unification
A quark-lepton unified Pati-Salam model with Z2 symmetry realizes a leptoquark gauge boson as light as 4.3 TeV, compatible with LHC and flavor constraints, and predicts testable lepton flavor violation plus new vector...
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Resonant Leptogenesis in a Two-Triplet Type-II Seesaw: A Dynamical Origin of Suppressed Lepton Flavor Violation
In a two-triplet Type-II seesaw, resonant leptogenesis at the TeV scale dynamically requires small Yukawa couplings that suppress observable lepton flavor violation as a direct consequence of successful baryogenesis.
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