Neutrino mixings from a U(2) flavour symmetry

被引：47

作者：

Barbieri, R

Creminelli, P

Romanino, A

机构：

[1] Scuola Normale Super Pisa, I-56126 Pisa, Italy

[2] Ist Nazl Fis Nucl, Sez Pisa, I-56126 Pisa, Italy

[3] Univ Oxford, Dept Phys, Oxford OX1 3NP, England

来源：

NUCLEAR PHYSICS B | 1999年 / 559卷 / 1-2期

关键词：

flavour; neutrinos; masses; mixings;

D O I：

10.1016/S0550-3213(99)00425-3

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：

We extend a previously developed description of the flavour parameters in the charged fermion sector, based on a U(2) flavour symmetry, to include two main features of the neutrino sector seemingly implied by recent data: a large mixing angle theta(mu tau) and a large hierarchy in the neutrino squared mass differences. A unified description of quark and lepton masses and mixings emerges, The neatest quantitative predictions are for elements of the unitary mixing matrix in the lepton sector [GRAPHICS] which go together with the analogous relations in the quark sector [GRAPHICS] (C) 1999 Elsevier Science B.V. All rights reserved,

引用

页码：17 / 26

页数：10

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