Two-zero textures of the Majorana neutrino mass matrix and current experimental tests

被引：187

作者：

Fritzsch, Harald ^{[1
]}

Xing, Zhi-zhong ^{[2
]}

Zhou, Shun ^{[3
]}

机构：

[1] Univ Munich, Dept Phys, D-80333 Munich, Germany

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[3] Max Planck Inst Phys & Astrophys, Werner Heisenberg Inst, D-80805 Munich, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 09期

基金：

中国国家自然科学基金;

关键词：

Neutrino Physics; Discrete and Finite Symmetries; RADIATIVE-CORRECTIONS; CP VIOLATION; ZEROS; RENORMALIZATION; LEPTOGENESIS; REALIZATION; MIXINGS; MODELS; ANGLES;

D O I：

10.1007/JHEP09(2011)083

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In view of the latest T2K and MINOS neutrino oscillation data which hint at a relatively large theta(13), we perform a systematic study of the Majorana neutrino mass matrix M-nu with two independent texture zeros. We show that three neutrino masses (m(1), m(2), m(3)) and three CP-violating phases (delta, rho, sigma) can fully be determined from two neutrino masss-quared differences (delta m(2), Delta m(2)) and three flavor mixing angles (theta(12), theta(23), theta(13)). We find that seven patterns of M-nu (i.e., A(1,2), B-1,B-2,B-3,B-4 and C) are compatible with current experimental data at the 3 sigma level, but the parameter space of each pattern is more strictly constrained than before. We demonstrate that the texture zeros of M-nu are stable against the one-loop quantum corrections, and there exists a permutation symmetry between Patterns A(1) and A(2), B-1 and B-2 or B-3 and B-4. Phenomenological implications of M-nu on the neutrinoless double-beta decay and leptonic CP violation are discussed, and a realization of those texture zeros by means of the Z(n) flavor symmetries is illustrated.

引用

页数：43

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