Quark CP-Phase and Froggatt-Nielsen Mechanism

Chuichiro Hattori; Masahisa Matsuda; Mamoru Matsunaga; Takeo Matsuoka

doi:10.1016/j.physletb.2016.05.054

Quark CP-Phase and Froggatt-Nielsen Mechanism

High Energy Physics - Phenomenology 2016-06-22 v2

Authors: Chuichiro Hattori , Masahisa Matsuda , Mamoru Matsunaga , Takeo Matsuoka

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Abstract

On the basis of the Froggatt-Nielsen mechanism, we study quark flavor mixings in the $SU(6) \times SU(2)_R$ model. The characteristic structure of the CKM matrix is attributed to the hierarchical effective Yukawa couplings due to the Froggatt-Nielsen mechanism and also to the state-mixings beyond the MSSM. We elucidate the detailed form of the CKM matrix elements and find interesting relations between the \textit{CP} violating phase and three mixing angles. Taking the existing data of three mixing angles, we estimate the quark \textit{CP}-phase at $\delta = (75 \pm 3)^{\circ}$ . This result is in accord with observations.

Keywords

quark CP-phase Froggatt-Nielsen mechanism CKM matrix Yukawa couplings flavor mixing SU(6) x SU(2)_R model CP violation

Cite

@article{arxiv.1511.06826,
  title  = {Quark CP-Phase and Froggatt-Nielsen Mechanism},
  author = {Chuichiro Hattori and Masahisa Matsuda and Mamoru Matsunaga and Takeo Matsuoka},
  journal= {arXiv preprint arXiv:1511.06826},
  year   = {2016}
}

Comments

14 pages, no figure. To be published in Physics Letters B. Several sentences are added. arXiv admin note: text overlap with arXiv:1210.3763

Quark CP-Phase and Froggatt-Nielsen Mechanism

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