Fermion masses and symmetry breaking of a U(2) flavour symmetry

被引：36

作者：

Barbieri, R ^{[1
]}

Giusti, L

Hall, LJ

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 Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

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

来源：

NUCLEAR PHYSICS B | 1999年 / 550卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

flavour; symmetries; potential;

D O I：

10.1016/S0550-3213(99)00195-9

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 show how a specific sequential breaking pattern of a U(2) flavour symmetry occurs automatically in a broad framework. The relative orientation in U(2) space of the spurion fields that breaks the U(2) symmetry is uniquely fixed, thus determining the form of the fermion mass matrices in a predictive way. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：32 / 40

页数：9

共 9 条

[1] Consequences of a U(2) flavour symmetry [J].