Speaker
Description
We have derived a general and explicit expression for the Jarlskog invariant of CP violation in flavor oscillations of three active neutrinos by using the 18 original parameters in the canonical seesaw mechanism (i.e., 3 heavy Majorana neutrino masses, 9 active-sterile flavor mixing angles and 6 CP-violaing phases). This novel analytical result provides the first model-independent window to look at thermal leptogenesis for the cosmological matter-antimatter asymmetry from leptonic CP violation at low energies. A simplified result in the minimal seesaw framework with only two right-handed neutrino fields is discussed to illustrate how CP violation in the light Majorana neutrino sector is correlated with that in the heavy Majorana neutrino sector.
Based on the paper under writing (the general seesaw) and the one published in Phys. Lett. B 844 (2023) 138065 (the minimal seesaw) by Zhi-zhong Xing.
| Alternate track | 08. Astro-particle Physics and Cosmology |
|---|---|
| I read the instructions above | Yes |
