Calculable CP violating phases in the minimal seesaw model of leptogenesis and neutrino mixing - INSPIRE

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Calculable CP violating phases in the minimal seesaw model of leptogenesis and neutrino mixing

Wan-lei Guo
(
- CCAST World Lab, Beijing and
- Beijing, Inst. High Energy Phys.
)
,
Zhi-zhong Xing
(
- CCAST World Lab, Beijing and
- Beijing, Inst. High Energy Phys.
)

Oct, 2003

12 pages

Published in:

Phys.Lett.B 583 (2004) 163-172

e-Print:

hep-ph/0310326 [hep-ph]

DOI:

10.1016/j.physletb.2003.12.043

View in:

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Abstract:

We show that all nontrivial CP-violating phases can be determined in terms of three lepton flavor mixing angles and the ratio of

\Delta m^2_{\rm sun}

to

\Delta m^2_{\rm atm}

in the minimal seesaw model in which the Frampton-Glashow-Yanagida (FGY) ansatz is incorporated. This important point allows us to make very specific predictions for the cosmological baryon number asymmetry and CP violation in neutrino oscillations. A measurement of the smallest neutrino mixing angle will sensitively test the FGY ansatz, in particular in the case that three light neutrinos have a normal mass hierarchy.

14.60.Pq
13.10.+q
25.30.Pt
lepton: production
neutrino: mixing angle
CP: violation
seesaw model
neutrino: mass difference
baryon number: asymmetry
neutrino: oscillation

References(42)

Figures(0)

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