Massive and massless neutrinos on unbalanced seesaws
Xing ZZ(邢志忠); Xing, ZZ
刊名CHINESE PHYSICS C
2008
卷号32期号:2页码:#REF!
关键词neutrino mass type-I seesaw majorana neutrinos
学科分类Physics
通讯作者Xing, ZZ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型Article
英文摘要The observation of neutrino oscillations requires new physics beyond the standard model (SM). A SM-like gauge theory with p lepton families can be extended by introducing q heavy right-handed Majorana neutrinos but preserving its SU(2)(L) x U(1)(Y) gauge symmetry. The overall neutrino mass matrix M turns out to be a symmetric (p + q) x (p + q) matrix. Given p > q, the rank of M is in general equal to 2q, corresponding to 2q non-zero mass eigenvalues. The existence of (p-q) massless left-handed Majorana neutrinos is an exact consequence of the model, independent of the usual approximation made in deriving the Type-l seesaw relation between the effective p x p light Majorana neutrino mass matrix M, and the q x q heavy Majorana neutrino mass matrix M-R. In other words, the numbers of massive left- and right-handed neutrinos axe fairly matched. A good example to illustrate this "seesaw fair play rule" is the minimal seesaw model with p = 3 and q = 2, in which one massless neutrino sits on the unbalanced seesaw.
类目[WOS]Physics, Nuclear ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000253607100004
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226112
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Xing ZZ,Xing, ZZ. Massive and massless neutrinos on unbalanced seesaws[J]. CHINESE PHYSICS C,2008,32(2):#REF!.
APA 邢志忠,&Xing, ZZ.(2008).Massive and massless neutrinos on unbalanced seesaws.CHINESE PHYSICS C,32(2),#REF!.
MLA 邢志忠,et al."Massive and massless neutrinos on unbalanced seesaws".CHINESE PHYSICS C 32.2(2008):#REF!.
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