☆ 4.4 Article

Scale and quality of Peccei-Quinn symmetry and weak gravity conjectures

JOURNAL OF HIGH ENERGY PHYSICS (2020)

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Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 10, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP10(2020)032

Keywords

Beyond Standard Model; Cosmology of Theories beyond the SM; Global Symmetries

Categories

Physics, Particles & Fields

Funding

  1. JSPS KAKENHI [16H06490]
  2. National Research Foundation Strategic Research Program [NRF-2017R1E1A1A01072736]

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The promising solution to the strong CP problem by a Peccei-Quinn (PQ) symmetry may introduce quality and hierarchy problems, which are both relevant to Planck physics. In this paper, we study whether both problems can be explained by introducing a simple hidden gauge group which satisfies the WGC or its variant. As a concrete example, we point out that a weakly-coupled hidden SU(N) gauge symmetry, which is broken down to SO(N), can do this job in the context of a Tower/sub-Lattice WGC. Cosmology is discussed.

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