Automatic CP Invariance and Flavor Symmetry
High Energy Physics - Phenomenology
2015-06-25 v1
Abstract
The approximate conservation of can be naturally understood if it arises as an automatic symmetry of the renormalizable Lagrangian. We present a specific realistic example with this feature. In this example, the global Peccei-Quinn symmetry and gauge symmetries of the model make the renormalizable Lagrangian invariant but allow non zero hierarchical masses and mixing among the three generations. The left-right and a horizontal symmetry is imposed to achieve this. The non-renormalizable interactions invariant under these symmetries violate whose magnitude can be in the experimentally required range if is broken at very high, typically, near the grand unification scale.
Cite
@article{arxiv.hep-ph/9602228,
title = {Automatic CP Invariance and Flavor Symmetry},
author = {Gautam Dutta and Anjan S. Joshipura},
journal= {arXiv preprint arXiv:hep-ph/9602228},
year = {2015}
}