Electroweak and flavour structure of a warped extra dimension with custodial protection

被引：78

作者：

Albrecht, Michaela E. ^{[1
]}

Blanke, Monika ^{[1
,2
]}

Buras, Andrzej J. ^{[1
,3
]}

Duling, Bjoern ^{[1
]}

Gemmler, Katrin ^{[1
]}

机构：

[1] Tech Univ Munich, Dept Phys, D-85748 Garching, Germany

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

[3] Tech Univ Munich, TUM Inst Adv Study, D-80333 Munich, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2009年 / 09期

关键词：

Beyond Standard Model; Technicolor and Composite Models; HIGGS-MODEL; PHYSICS; VIOLATION; HIERARCHY; LEPTONS; MASSES;

D O I：

10.1088/1126-6708/2009/09/064

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 present the electroweak and flavour structure of a model with a warped extra dimension and the bulk gauge group SU(3)(c) x SU(2)(L) x SU(2)(R) x P-LR x U(t)(X). The presence of SU(2)(R) implies an unbroken custodial symmetry in the Higgs system allowing to eliminate large contributions to the T parameter, whereas the P-LR symmetry and the enlarged fermion representations provide a custodial symmetry for flavour diagonal and flavour changing couplings of the SM Z boson to left-handed down-type quarks. We diagonalise analytically the mass matrices of charged and neutral gauge bosons including the first KK modes. We present the mass matrices for quarks including heavy KK modes and discuss the neutral and charged currents involving light and heavy fields. We give the corresponding complete set of Feynman rules in the unitary gauge.

引用

页数：63

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