The three-generational SM quark/lepton masses are known to be hierarchical, and the latest LHC measurements of the SM Higgs boson Yukawa couplings match well with the SM predictions. Based on the experimental facts, we propose a unified SU(8) framework, which is the minimal theory where three-generational SM fermions are non-trivially embedded. There is only one unique SM Higgs doublet according to the origin of the non-anomalous B-L symmetry. Accordingly, we construct two types of d=5 operators with this SM Higgs doublet through the inevitable gravitational effect that breaks the emergent global symmetries of the theory. A hierarchical quark/lepton mass pattern and the CKM mixing pattern can be reproduced in this framework with the precise flavor identifications.

报告人简介

2006 - 2011, Stony Brook University 杨振宁理论物理所博士毕业；2011 - 2014 清华大学博士后；2014 - 2017 中国科学技术大学特聘副研究员；2017 - 2018 北京科技大学讲师；2018 至今，南开大学物理学院副教授。

邀请人

于江浩 研究员