Takafumi Endoh

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We study the correlation between CP violation in neutrino oscillations and leptogenesis in the framework with two heavy Majorana neutrinos and three light neutrinos. Among three unremovable CP phases, a heavy Majorana phase contributes to leptogenesis. We show how the heavy Majorana phase contributes to Jarlskog determinant J as well as neutrinoless double(More)
In the previous paper[1] we have identified the CP violating phases of the seesaw model and found six independent phases. In the case where the heavy right-handed Majorana mass has a strong hierarchy in the diagonal basis M1 ≫ M2 ≫ M3, the diagonalization of the seesaw matrix is possible under the assumption that the elements in Yukawa-Dirac mass matrix are(More)
How is CP violation of low energy related to CP violation required from baryon number asymmetry ? We give an example which shows a direct link between CP violation of neutrino oscillation and baryogenesis through leptogenesis. When the sphaleron process is active, the sum of baryon number and lepton number is not a conserved quantity; d(B+L) dt = Anomaly 6=(More)
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