期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP07(2014)039
关键词
Beyond Standard Model; Neutrino Physics
资金
- Marie Curie Intra-European Fellowship - 7th European Community [PIEF-GA-2011-297557]
- European Union FP7 ITN-INVISIBLES (Marie Curie Actions) [PITN-GA-2011-289442]
- DFG [WI 2639/3-1, WI 2639/4-1]
If the hints for light sterile neutrinos from short-baseline anomalies are to be taken seriously, global fits indicate active-sterile mixings of a magnitude comparable to the known reactor mixing. We therefore study the conditions under which the active-sterile and reactor mixings could have the same origin in an underlying flavour model. As a starting point, we use mu - tau symmetry in the active neutrino sector, which (for three neutrinos) yields a zero reactor neutrino angle and a maximal atmospheric one. We demonstrate that adding one sterile neutrino can change this setting, so that the active-sterile mixing and non-zero theta(13) can be generated simultaneously. From the phenomenological perspective, electron (anti) neutrino disappearance can be easily accommodated, while muon neutrino disappearance can vanish. Even the LSND results can be reconciled if the Majorana phases have very specific values. From the theory perspective, the setting requires the misalignment of some of the flavon vacuum expectation values, which may be achieved in an A(4) or D-4 flavour symmetry model using extra dimensions.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据