Speaker
Zhi-zhong Xing
(Institute of High Energy, Chinese Academy of Sciences)
Description
We calculate several types of commutators associated with the leptonic Yukawa coupling matrices in the canonical seesaw mechanism, which can be used to measure leptonic CP violation in both heavy Majorana neutrino decays and light Majorana neutrino oscillations in the flavor basis. The corresponding Jarlskog-like invariants of CP violation and their small non-unitarity effects are derived in the mass basis with the help of a full Euler-like block parametrization of the seesaw flavor structure. A geometrical description of leptonic CP violation in terms of the unitarity polygon in the complex plane, together with some currently available experimental constraints, is also discussed.
| Secondary track | T07 - Flavour Physics and CP Violation |
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Author
Zhi-zhong Xing
(Institute of High Energy, Chinese Academy of Sciences)
