Title: An affine SU(8) theory of the SM quark/lepton masses
报告人: 陈宁 副教授 【南开大学】
时间：2025年6月5日 (周四), 10:30
地点：物理学院203会议室
邀请人：张永超
Abstract: 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 prediction. Based on the experimental facts, we propose a unified SU(8) Lie algebra, which can non-trivially and minimally embed three-generational SM fermions. 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 symmeries 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. Three gauge couplings can achieve the unification within the level=1 SU(8) affine Lie algebra.
报告人简介: 2006 - 2011, 石溪大学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。