8 papers
GUT-motivated non-invertible symmetry as a solution to the strong CP problem and the neutrino CP-violating phase
Tatsuo Kobayashi, Hajime Otsuka, Morimitsu Tanimoto +1
The unsuppressed CP violation in QCD is a problem in the standard model. If we have some mechanism to guarantee real determinants of the quark mass matrices, the vanishing physical…
Axionless Solution to the Strong CP Problem -- two-zeros textures of the quark and lepton mass matrices and neutrino CP violation --
Morimitsu Tanimoto, Tsutomu T. Yanagida
CP invariance is a very attractive solution to the strong CP problem in QCD. This solution requires the vanishing , where the an…
Non-invertible Symmetry as a Solution to the Strong CP Problem in a GUT-inspired Standard Model
Tatsuo Kobayashi, Hajime Otsuka, Tsutomu T. Yanagida
We propose a three-zero texture for the down-quark mass matrix within a GUT-inspired Standard Model, enforced by a non-invertible selection rule originating from $\mathbb{Z…
Non-invertible symmetry as an axion-less solution to the strong CP problem
Qiuyue Liang, Tsutomu T. Yanagida
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-…
Dark Matter in the High-Scale Seesaw Leptogenesis Paradigm
Juan Herrero-Garcia, Giacomo Landini, Tsutomu T. Yanagida
The seesaw mechanism with three heavy Majorana right-handed neutrinos provides an elegant explanation for neutrino masses and, combined with leptogenesis, can generate the baryon a…
Prediction of the CP Phase in the Neutrino Oscillation and an Axion-less Solution to the Strong CP Problem
Morimitsu Tanimoto, Tsutomu T. Yanagida
A model of the axion-less solution to the strong CP problem has been recently constructed based on the orbifold in the six dimensional space-time. We extend,…