Dynamical approach to linking low energy phases with leptogenesis
Dynamical approach to linking low energy phases with leptogenesis
复制标题
连接低能相与轻子发生的动态方法
DOI：
10.1103/physrevd.80.076011
复制
发表时间：
2009
影响因子：
5
通讯作者：
Y. Lin
中科院分区：
文献类型：
--
作者：
Y. Lin
Does a future observation of low energy leptonic $CP$ violation imply a lepton asymmetry both in flavored leptogenesis and in its one-flavor approximation? Under reasonable assumptions this is the case if lepton masses and mixings are explained by a flavor symmetry in a seesaw model. We are particularly interested in the class of flavor theory which leads to ${U}_{e3}=0$ at leading order. We explicitly implement this approach with a predictive seesaw model for tribimaximal mixing (TBM) and show how cosmological baryon asymmetry can be directly triggered by low energy phases appearing in ${U}_{e3}$. In this model, thanks to this direct correlation, we can derive a lower bound on the reactor angle ${\ensuremath{\theta}}_{13}$: ${sin}^{2}{\ensuremath{\theta}}_{13}\ensuremath{\gtrsim}0.005$.
Does a future observation of low energy leptonic $CP$ violation imply a lepton asymmetry both in flavored leptogenesis and in its one-flavor approximation? Under reasonable assumptions this is the case if lepton masses and mixings are explained by a flavor symmetry in a seesaw model. We are particularly interested in the class of flavor theory which leads to ${U}_{e3}=0$ at leading order. We explicitly implement this approach with a predictive seesaw model for tribimaximal mixing (TBM) and show how cosmological baryon asymmetry can be directly triggered by low energy phases appearing in ${U}_{e3}$. In this model, thanks to this direct correlation, we can derive a lower bound on the reactor angle ${\ensuremath{\theta}}_{13}$: ${sin}^{2}{\ensuremath{\theta}}_{13}\ensuremath{\gtrsim}0.005$.