Lecture: Origin of Neutrino Masses and Flavor Mixing

Speaker: Dr. Changyuan Yao,  University of Science and Technology of China

Time & Date: 15:30-16:30 Mar. 9, 2018

Venue: Room 208 in the School of Physics


We perform a systematic study of the Dirac neutrino masses which arise from dimension five and dimension six effective operators. We identify all  possible realizations of these operators at tree level and one-loop  level. The corresponding predictions for the particle content and  neutrino mass matrix are presented. The electrically neutral particle  mediating the loop diagram could be dark matter candidate. We give the  possible dark matter particles and the restrictions on the parameter α  for each model. We also studied the flavor mixing of leptons, including  the generalized CP symmetry, we have performed a comprehensive scan of  leptonic mixing patterns which can be obtained from finite discrete  groups with order less than 2000. The resulting lepton mixing matrices  admit a good agreement with experimental data.