论文标题
Weinberg Dimension-5操作员由矢量般的Lepton Doublets制作
Weinberg dimension-5 operator by vector-like lepton doublets
论文作者
论文摘要
众所周知，小型中微子质量的Weinberg Dimension-5操作员可以在三种类型的可重新分配模型中在树级上实现：（i）由Fermion Singlets介导的类型I SEESAW，（ii）由Higgs三胞胎（IIIII）Type-II Seesaw介导的Type-II Seesaw，（IIII）由Type-IIIIIII SESAW MEDITY由Frermion Medifertions组成。我们在这里指出，也可以通过类似矢量的Lepton Doublets在树级上引起此类操作员，并与异常的费米昂单线，希格斯三胞胎或费米昂三重态相关联。如果这些不寻常的费用单曲，希格斯三胞胎或费米昂三胞胎足够沉重，则它们的衰减会产生轻子不对称，以解释宇宙的baryon不对称性，同时，类似矢量的Lepton Doublets可以导致具有丰富的逆向或线性的Seeesaw seesaw teesaw teesaw obsable obsaw obsable observebersable。我们进一步指定我们的方案可以自然地嵌入一个大统一理论中，而无需传统的I型II，I型或III型Seesaw。
It is well known that a Weinberg dimension-5 operator for small neutrino masses can be realized at tree level in three types of renormalizable models: (i) the type-I seesaw mediated by fermion singlets, (ii) the type-II seesaw mediated by Higgs triplets, (iii) the type-III seesaw mediated by fermion triplets. We here point out such operator can be also induced at tree level by vector-like lepton doublets in association with unusual fermion singlets, Higgs triplets or fermion triplets. If these unusual fermion singlets, Higgs triplets or fermion triplets are heavy enough, their decays can generate a lepton asymmetry to explain the cosmic baryon asymmetry, meanwhile, the vector-like lepton doublets can lead to a novel inverse or linear seesaw with rich observable phenomena. We further specify our scenario can be naturally embedded into a grand unification theory without the conventional type-I, type-II or type-III seesaw.
