Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-08-27
Prog.Theor.Phys. 111 (2004) 123-149
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages, 8 figures, ptp.style
Scientific paper
10.1143/PTP.111.123
In leptogenesis scenario, the decays of heavy Majorana neutrinos generate lepton family asymmetries, $Y_e, Y_{\mu}$ and $Y_{\tau}$. They are sensitive to CP violating phases in seesaw models. The time evolution of the lepton family asymmetries are derived by solving Boltzmann equations. By taking a minimal seesaw model, we show how each family asymmetry varies with a CP violating phase. For instance, we find the case that the lepton asymmetry is dominated by $Y_{\mu}$ or $Y_{\tau}$ depending on the choice of the CP violating phase. We also find the case that the signs of lepton family asymmetries $Y_{\mu}$ and $Y_{\tau}$ are opposite each other. Their absolute values can be larger than the total lepton asymmetry and the baryon asymmetry may result from the cancellation of the lepton family asymmetries.
Endoh Testuo
Morozumi Takuya
Xiong Zhongmin
No associations
LandOfFree
Primordial Lepton Family Asymmtries in Seesaw Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Primordial Lepton Family Asymmtries in Seesaw Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Primordial Lepton Family Asymmtries in Seesaw Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-678679