English

Quark mixing from Delta(6N^2) family symmetry

High Energy Physics - Phenomenology 2015-06-23 v1

Abstract

We consider a direct approach to quark mixing based on the discrete family symmetry Delta (6N^2) in which the Cabibbo angle is determined by a residual Z_2 times Z_2 subgroup to be Vus=0.222521|V_{us}|=0.222521, for NN being a multiple of 7. We propose a particular model in which unequal smaller quark mixing angles and CP phases may occur without breaking the residual Z_2 times Z_2 symmetry. We perform a numerical analysis of the model for N=14N=14, where small Z_2 times Z_2 breaking effects of order 3% are allowed by model, allowing perfect agreement within the uncertainties of the experimentally determined best fit quark mixing values.

Keywords

Cite

@article{arxiv.1411.5845,
  title  = {Quark mixing from Delta(6N^2) family symmetry},
  author = {Hajime Ishimori and Stephen F. King and Hiroshi Okada and Morimitsu Tanimoto},
  journal= {arXiv preprint arXiv:1411.5845},
  year   = {2015}
}

Comments

14 pages, 6 figures. arXiv admin note: text overlap with arXiv:1403.4395