A discrete gauge symmetry protecting the axion induces a large effective mass during inflation via a gauge-invariant PQ-violating operator, suppressing isocurvature fluctuations and addressing both quality and isocurvature issues.
Bhattiprolu and S.P
4 Pith papers cite this work, alongside 17 external citations. Polarity classification is still indexing.
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abstract
Solutions to the $\mu$ problem in supersymmetry based on the Kim-Nilles mechanism naturally feature a Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) axion with decay constant of order the geometric mean of the Planck and TeV scales, consistent with astrophysical limits. We investigate minimal models of this type with two gauge-singlet fields that break a Peccei-Quinn symmetry, and extensions with extra vectorlike quark and lepton supermultiplets consistent with gauge coupling unification. We show that there are many anomaly-free discrete symmetries, depending on the vectorlike matter content, that protect the Peccei-Quinn symmetry to sufficiently high order to solve the strong CP problem. We study the axion couplings in this class of models. Models of this type that are automatically free of the domain wall problem require at least one pair of strongly interacting vectorlike multiplets with mass at the intermediate scale, and predict axion couplings that are greatly enhanced compared to the minimal supersymmetric DFSZ models, putting them within reach of proposed axion searches.
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A subconstituent compositeness reading of the B-lattice organizes fermion masses and mixings on a ninths ladder with Z9 charges, yielding CKM/PMNS forms, m3 ≃ 51 meV, ma ∼ 7–12 μeV, and tanβ ≃ 10–16 from Λ and ε = 14/75.
Warped extra-dimensional Wilson-line axions can achieve high quality when non-QCD potential contributions from charged bulk fields are parametrically suppressed by geometry and brane effects.
Anomaly-free discrete R-symmetries plus Kim-Nilles regeneration of the mu term force an accidental U(1)_PQ whose spontaneous breaking yields a SUSY DFSZ axion that solves strong CP.
citing papers explorer
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High-Quality Axion Dark Matter without Isocurvature Problem
A discrete gauge symmetry protecting the axion induces a large effective mass during inflation via a gauge-invariant PQ-violating operator, suppressing isocurvature fluctuations and addressing both quality and isocurvature issues.
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Generation as Compositeness: A Subconstituent Interpretation of the $B$-Lattice Flavor Hierarchy
A subconstituent compositeness reading of the B-lattice organizes fermion masses and mixings on a ninths ladder with Z9 charges, yielding CKM/PMNS forms, m3 ≃ 51 meV, ma ∼ 7–12 μeV, and tanβ ≃ 10–16 from Λ and ε = 14/75.
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Axion Quality in Warped Extra-Dimension
Warped extra-dimensional Wilson-line axions can achieve high quality when non-QCD potential contributions from charged bulk fields are parametrically suppressed by geometry and brane effects.
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Serendipitous supersymmetric solution to the strong CP problem
Anomaly-free discrete R-symmetries plus Kim-Nilles regeneration of the mu term force an accidental U(1)_PQ whose spontaneous breaking yields a SUSY DFSZ axion that solves strong CP.