Effective field theory approach to lepton number violation: dimension seven operators

by Prof. Yi Liao (Nankai University)

Friday 22 Mar 2019, 09:30 → 10:15 Asia/Shanghai

Meeting Room 410,TDLI（Tsung-Dao Lee Library）

Abstract

Effective field theory offers an appropriate approach to lepton-number violating processes at low energy and to connecting to origin of lepton number violation at high energy scale. In this talk I'll focus on dimension seven operators appearing in standard model effective field theory. I'll discuss their completeness and independence, and their renormalization. I'll explain how to extract anomalous dimensions for a suitably chosen basis of operators constrained by nontrivial flavor relations. As simple illustrations, I'll estimate renormalization effects on neutrinoless double beta decay and unusual proton decay.

Biography

Prof. Yi Liao, Nankai University 

Division

Particle and Nuclear