Electroweak and flavour structure of a warped extra dimension with custodial protection
- 1. Physik Department, Technische Universitaet Muenchen, D-85748 Garching (Germany)
Description
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 PLR x U(1)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 PLR 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.
Availability note (English)
Available from http://dx.doi.org/10.1088/1126-6708/2009/09/064Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of High Energy Physics
- Journal Volume
- 9
- Journal Issue
- 2009
- Journal Page Range
- p. 064
- ISSN
- 1126-6708
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41112402
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHARGED CURRENTS; FLAVOR MODEL; HIGGS BOSONS; HIGGS MODEL; MASS; MATRICES; QUARKS; SU-2 GROUPS; SU-3 GROUPS; SYMMETRY; WEINBERG-SALAM GAUGE MODEL; Z NEUTRAL BOSONS
- Descriptors DEC
- ALGEBRAIC CURRENTS; BOSONS; COMPOSITE MODELS; CURRENTS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; INTERMEDIATE BOSONS; INTERMEDIATE VECTOR BOSONS; LIE GROUPS; MATHEMATICAL MODELS; PARTICLE MODELS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; QUARK MODEL; SU GROUPS; SYMMETRY GROUPS; UNIFIED GAUGE MODELS; UNIFIED-FIELD THEORIES