Full parametrization of the 6 x 6 flavor mixing matrix in the presence of three light or heavy sterile neutrinos
邢志忠;Xing, ZZ
刊名PHYSICAL REVIEW D
2012
卷号85期号:1页码:13008
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.85.013008
英文摘要In addition to three active neutrinos nu(e), nu(mu), and nu(tau), one or more light sterile neutrinos have been conjectured to account for the LSND, MiniBooNE, and reactor antineutrino anomalies (at the sub-eV mass scale) or for warm dark matter in the Universe (at the keV mass scale). Heavy Majorana neutrinos at or above the TeV scale have also been assumed in some seesaw models. Such hypothetical particles can weakly mix with active neutrinos, and thus their existence can be detected at low energies. In the (3 + 3) scenario with three sterile neutrinos we present a full parametrization of the 6 x 6 flavor mixing matrix in terms of 15 rotation angles and 15 phase angles. We show that this standard parametrization allows us to clearly describe the salient features of some problems in neutrino phenomenology, such as (a) possible contributions of light sterile neutrinos to the tritium beta decay and neutrinoless double-beta decay, (b) leptonic CP violation and deformed unitarity triangles of the 3 x 3 flavor mixing matrix of three active neutrinos, (c) a reconstruction of the 6 x 6 neutrino mass matrix in the type-(I+II) seesaw mechanism, and (d) flavored and unflavored leptogenesis scenarios in the type-I seesaw mechanism with three heavy Majorana neutrinos.
收录类别SCI
WOS记录号WOS:000298989300003
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被引频次:30[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/311005/224478
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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邢志忠;Xing, ZZ. Full parametrization of the 6 x 6 flavor mixing matrix in the presence of three light or heavy sterile neutrinos[J]. PHYSICAL REVIEW D,2012,85(1):13008.
APA 邢志忠;Xing, ZZ.(2012).Full parametrization of the 6 x 6 flavor mixing matrix in the presence of three light or heavy sterile neutrinos.PHYSICAL REVIEW D,85(1),13008.
MLA 邢志忠;Xing, ZZ."Full parametrization of the 6 x 6 flavor mixing matrix in the presence of three light or heavy sterile neutrinos".PHYSICAL REVIEW D 85.1(2012):13008.
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