Non-invertible symmetry as an axion-less solution to the strong CP problem
Qiuyue Liang, Tsutomu T. Yanagida
Abstract
We use a non-invertible symmetry to construct a three-zero texture for the down-type quark mass matrix, which can resolve the strong CP problem without invoking the axion, in four-dimensional spacetime with three quark families in QCD. We assume CP invariance at the fundamental high-energy scale.
Topics & Concepts
PhysicsAxionStrong CP problemInvertible matrixSymmetry (geometry)Particle physicsMathematical physicsTheoretical physicsQuantum mechanicsDark matterMathematicsGeometryDark Matter and Cosmic PhenomenaParticle physics theoretical and experimental studiesCosmology and Gravitation Theories