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Planck-Scale Physics and Solutions to the Strong CP Problem without Axion

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arxiv hep-ph/9212318 v2 pith:I6SLRZNW submitted 1992-12-31 hep-ph

Z.G.Berezhiani , R.N.Mohapatra , G.Senjanovic This is my paper · ORCID
classification hep-ph
keywords lambdaproblemscalesolutionsstronganalyseaxionbound
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abstract

We analyse the impact of quantum gravity on the possible solutions to the strong CP problem which utilize the spontaneously broken discrete symmetries, such as parity and time reversal invariance. We find that the stability of the solution under Planck scale effects provides an upper limit on the scale $\Lambda$ of relevant symmetry breaking. This result is model dependent and the bound is most restrictive for the seesaw type models of fermion masses, with $\Lambda < 10^6$ GeV.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Universal Seesaw Leptogenesis

    hep-ph 2025-12 conditional novelty 7.0 of 10

    Leptogenesis can proceed from single-generation gauge-singlet mediator decays in a Universal Seesaw model if parity is broken in the neutrino sector; the lightest right-handed neutrino is a sub-eV dark-radiation relic.

  2. Vector-like quark doublets, weak-basis invariants and CP violation

    hep-ph 2024-12 conditional novelty 7.0 of 10

    Vector-like quark doublets allow CP violation in weak-basis invariants of mass dimension six; the resulting framework organizes the model's parameters, gives the complete CP-odd invariant set for one doublet, and link...

  3. Universal Seesaw Pati-Salam Model with P for Strong CP

    hep-ph 2025-12 conditional novelty 6.0 of 10

    A parity-symmetric Pati-Salam model with universal seesaw masses gives an axionless strong-CP solution and radiatively induced neutrino masses.

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