YUKAWA TEXTURES AND WEAK BASIS INVARIANTS
YUKAWA TEXTURES AND WEAK BASIS INVARIANTS
复制标题
Yukawa 纹理和弱基不变量
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
J. Silva
中科院分区：
文献类型：
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作者：
G. Branco;M. N. Rebelo;J. Silva
我们表明，文献中考虑的一大类轻子纹理零集意味着某些 CP 奇弱基不变量的消失。当以零不明显的任意弱基编写时，这些不变条件使人们能够识别与一组纹理零相对应的风味模型。我们还分析了纹理零点在轻子发生和低能轻子质量、混合和 CP 破坏之间的联系中的作用。对于某些纹理，与轻子发生相关的变量可以根据低能量参数和重中微子质量来完全确定。 gustavo.branco@cern.ch 和 gbranco@cftp.ist.utl.pt margarida.rebelo@cern.ch 和 rerelo@ist.utl.pt Joaquim.Silva-Marcos@cern.ch
We show that a large class of sets of leptonic texture zeros considered in the literature imply the vanishing of certain CP-odd weak-basis invariants. These invariant conditions enable one to recognize a flavour model corresponding to a set of texture zeros, when written in an arbitrary weak-basis where the zeros are not manifest. We also analyse the rôle of texture zeros in allowing for a connection between leptogenesis and low-energy leptonic masses, mixing and CP violation. For some of the textures the variables relevant for leptogenesis can be fully determined in terms of low energy parameters and heavy neutrino masses. gustavo.branco@cern.ch and gbranco@cftp.ist.utl.pt margarida.rebelo@cern.ch and rebelo@ist.utl.pt Joaquim.Silva-Marcos@cern.ch