推广的双跷跷板模型下的中微子质量及模型分类Neutrino Masses in the Extended Double Seesaw Model and Its Classification
胡立军,沙依甫加马力·达吾来提
摘要(Abstract):
在推广的双跷跷板模型下,给出了轻中微子质量矩阵的一般形式,并且指出传统的第一类跷跷板模型(Type-I Seesaw)和双跷跷板模型(Double Seesaw)是推广的双跷跷板模型的两种特殊情况.通过分析这种模型的中微子9×9质量矩阵,发现当MR=MSMμ1MST严格成立时,推广的双跷跷板模型会退化到传统的第一类跷跷板模型.通过研究MS,Mμ和MR的秩和矩阵结构,推广的双跷跷板模型一共可以被分为105类,并且研究了它的最小模型,即仅有两代轻中微子的情况.还研究了推广的双跷跷板模型的幺正性破坏.
关键词(KeyWords): 中微子质量;非标准模型下的中微子
基金项目(Foundation): 国家自然科学基金(10965006)
作者(Author): 胡立军,沙依甫加马力·达吾来提
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