RS1, custodial isospin and precision tests

By K. Agashe, A. Delgado, M. May, R. Sundrum. 2003

514 citations recorded by the source corpus.

We study precision electroweak constraints within a RS1 model with gauge fields and fermions in the bulk. The electroweak gauge symmetry is enhanced to SU(2)L × SU(2)R × U(1)B−L, thereby providing a custodial isospin symmetry sufficient to suppress excessive contributions to the T parameter. We then construct complete models, complying with all electroweak constraints, for solving the hierarchy problem, without supersymmetry or large hierarchies in the fundamental couplings. Using the AdS/CFT correspondence our models can be interpreted as dual to a strongly coupled conformal Higgs sector with global custodial isospin symmetry, gauge and fermionic matter being fundamental fields external to the CFT. This scenario has interesting collider signals, distinct from other RS models in the literature.

Subfields: Artificial Intelligence, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a3b60edb221476333c34e2ec578467911ff7ed95

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Citations in the corpus

Electroweak and Flavour Structure of a Warped Extra Dimension with Custodial Protection (2009, background): “ 10 3 Fermion Sector – Quarks 3.1 Preliminaries In order to preserve the O(4) ∼ SU(2)L×SU(2)R×PLRsymmetry, that is necessary for the suppression of dangerous contributions to EW precision observables [10,11,14,15,22, 23], we will choose a particular simple set of representations of the O(4) group. A”
The flavor of the composite pseudo-goldstone Higgs (2008, methodology): “We consider here the standard RS scenario with custodial symmetry [ 21 ] (this is always what we mean when we refer to RS in the following).”
Jet substructure at the Large Hadron Collider (2018, methodology): “The RandallSundrum Kaluza-Klein model predicts a massive gluon decaying to top quarks [281, 282, 283, 284].”