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Horizontal symmetry of the SO(10) GUT
2016-05-16  【 】【打印】【关闭

Institute of Theoretical Physics

Key Laboratory of Theoretical Physics

  Chinese Academy of Sciences

Lunch Seminar

 

Title

题目

Horizontal symmetry of the SO(10) GUT

Speaker

报告人

C. S. Lam

Affiliation

所在单位

McGill Univ.

Date

日期

5月16日(Mon.)12:00

Venue

地点

Conference Hall 6620, ITP new building/理论物理所新楼6620报告厅

Abstract

摘要

There are three generations of fermions, but the relation between them remains a mystery. Modern particle theory relies heavily on symmetries, so it seems very abnormal if there is no (horizontal) symmetry between the three generations as well. In recent years, there are many attempts to explain the neutrino-mixing pattern by a horizontal symmetry, but unfortunately none of them are very compelling. In any case, the resulting symmetries are very different from those of the quarks, which is disturbing in light of the similarities between leptons and quarks in many other ways. I will show that if leptons and quarks are unified according to SO(10), then there is a common horizontal symmetry for them. Moreover, this horizontal symmetry is compelling because it follows from the (vertical) symmetry SO(10).

Contact person

所内合作者

Song He

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