TY - JOUR
AU - Phong, Nguyen Thanh
PY - 2014/03/12
Y2 - 2022/01/25
TI - Leptogenesis in \(A_4\) Flavor Symmetry Model by Renormalization Group Evolution
JF - Communications in Physics
JA - Comm. in Phys.
VL - 24
IS - 1
SE - Papers
DO - 10.15625/0868-3166/24/1/3618
UR - https://vjs.ac.vn/index.php/cip/article/view/3618
SP - 9
AB - We study how leptogenesis can be implemented in the seesaw models with \(A_4\) flavor symmetry, which lead to the tri-bimaximalneutrino mixing matrix. By considering renormalzation groupevolution from a high energy scale of flavor symmetry breaking(the GUT scale is assumed) to the low energy scale of relevantphenomena, the off-diagonal terms in a combination of DiracYukawa-coupling matrix can be generated. As aresult, the flavored leptogenesis is successfully realized. Wealso investigate how the effective light neutrino mass \(|\langle m_{ee}\rangle |\) associated with neutrinoless double beta decaycan be predicted byimposing the experimental data on the low energy observables. Wefind a link between the leptogenesis and the neutrinoless doublebeta decay characterized by \(|\langle m_{ee}\rangle|\) through ahigh energy CP phase $\phi$, which is correlated with the lowenergy Majorana CP phases. It is shown that the predictions of \(|\langle m_{ee}\rangle|\) for some fixed parameters of the highenergy physics can be constrained by the current observation ofbaryon asymmetry.
ER -