Affleck-Dine Leptogenesis from Higgs Inflation

by Prof. Cheng-cheng Han (Zhongshan U.)

Tuesday 15 Jun 2021, 13:30 → 15:30 Asia/Shanghai

Tsung-Dao Lee library/Fourth Floor-410 - 410# Meeting Room (Tsung-Dao Lee Library)

Abstract:

We investigate the possibility of simultaneously explaining inflation, the neutrino masses and the baryon asymmetry through extending the Standard Model by a triplet Higgs. The neutrino masses are generated by the vacuum expectation value of the triplet Higgs, while a combination of the triplet and doublet Higgs' plays the role of the inflaton. Additionally, the dynamics of the triplet, and its inherent lepton number violating interactions, lead to the generation of a lepton asymmetry during inflation. The resultant baryon asymmetry, inflationary predictions and neutrino masses are consistent with current observational and experimental results. This talk is based on the recent paper arXiv: 2106.03381.

Tencent information:

https://meeting.tencent.com/s/5BGyU6XBWfp0

ID: 813 107 887

password: 418547

 

leptogenesis.pdf