Scale and quality of Peccei-Quinn symmetry and weak gravity conjectures
Wen Yin
Abstract
A bstract 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.
Topics & Concepts
PhysicsGauge (firearms)Theoretical physicsContext (archaeology)Hierarchy problemSymmetry (geometry)Scale (ratio)Gauge symmetrySimple (philosophy)Hidden sectorCosmologyPlanck scalePoint (geometry)Quality (philosophy)HierarchyGauge theoryGravitationU-1PlanckGlobal symmetrySymmetry groupMathematical physicsGauge groupIntroduction to gauge theoryClassical mechanicsGauge anomalySymmetry breakingCircular symmetryTerm (time)Induced gravityExtra dimensionsFine-tuningNoncommutative and Quantum Gravity TheoriesBlack Holes and Theoretical PhysicsParticle physics theoretical and experimental studies