Seminar

Title: A new mechanism of baryogenesis: leptogenesis via phase transition

Speaker: Dr. Ye-Ling Zhou （周也铃）(Durham University, UK)

Time: 10:00AM, Jan. 12th 2017 (Thursday)

Place: Theoretical Physics Division，319

Abstract: I will talk about a new mechanism of baryogenesis (arXiv:1609.07969). It generates a lepton asymmetry via phase transition and partially converts it to abaryon asymmetry through sphaleron processes. It differs from the classical thermal leptogenesis in type-I seesaw, where the lepton asymmetry is generated through the decay of right-handed neutrinos. This mechanism does not specify any neutrino mass origins, but requires just a Weinberg operator and a CP-violating phase transition. It provides strong connections with low-energy neutrino experiments and leptonic flavour models.

Vidyo: http://vidyo.ihep.ac.cn/flex.html?roomdirect.html&key=MIYnttR57DSWlfYMvF7gr6uXY
PIN: 319319 (会议室短号：00928729 ;使用polycom或者电话连接时使用）