CP violation in neutrino mixing matrix and leptogenesis

Abstract

The CP violation required in leptogenesis may have different origin, but in an effective theory they all are related to the rephasing invariant CP violating measure in the mixing matrix of the leptonic sector. We point out that the maximum amount of CP violation in some models can be estimated with our present knowledge of the neutrino mixing angles, which can help us understand the CP violation in the generation of the lepton asymmetry of the universe. For example, the possibility of leptogenesis may be ruled out in some models from an knowledge of the effective neutrino mass matrix.

11 pages with one eps figure

References in corpus (2)

• CP Violations in Lepton Number Violation Processes and Neutrino Oscillations
• On the Geometry Origin of Weak CP Phase

Cited by in corpus (5)

• Rephasing-invariant CP violating parameters with Majorana neutrinos
• Leptogenesis and low energy CP phases with two heavy neutrinos
• CP-violating Majorana phases, lepton-conserving processes and final state interactions
• CP violation in neutrino oscillations and L/E flatness of the e-like event ratio at Super-Kamiokande
• Bi-Large Neutrino Mixing See-Saw Mass Matrix with Texture Zeros and Leptogenesis