SEESAW ENHANCEMENT OF LEPTON MIXING

被引：152

作者：

SMIRNOV, AY

机构：

[1] INT CTR THEORET PHYS, I-34100 TRIESTE, ITALY

[2] MOSCOW NUCL RES INST, MOSCOW 117312, RUSSIA

来源：

PHYSICAL REVIEW D | 1993年 / 48卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.48.3264

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The seesaw mechanism of neutrino mass generation may enhance lepton mixing up to maximal even if the Dirac mass matrices of leptons have a structure similar to that in the quark sector. Two sets of conditions for such an enhancement are found. The first one includes the seesaw generation of heavy Majorana masses for right-handed neutrinos and a universality of Yukawa couplings which can follow from the unification of neutrinos with new superheavy neutral leptons. The second set is related to the lepton number symmetry of the Yukawa interactions in the Dirac basis of neutrinos. Models which realize these conditions have a strong hierarchy or strong degeneration of Majorana masses of the right-handed neutrinos.

引用

页码：3264 / 3270

页数：7

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