Predictions for Flavour Observables in a RS Model with Custodial Symmetry

Details Predictions for Flavour Observables in a RS Model with Custodial Symmetry Predictions for Flavour Observables in a RS Model with Custodial Symmetry

2009-08-21

arxiv.org/abs/0908.3099v1

Acta Phys.Polon.Supp.3:139-144,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 6 figures, to appear in the proceedings of the Flavianet topical workshop "Low energy constraints on extensions of th

Scientific paper

In these proceedings we present the main results for particle-antiparticle mixing and rare decays in the Randall-Sundrum (RS) model with custodial symmetry. To investigate the strong bound on the Kaluza-Klein (KK) mass scale M_KK>O(20)TeV implied by the measurement of epsilon_K we perform a fine-tuning analysis on the one hand confirms the quoted bound on the KK mass scale but on the other hand reveals that consistence with experiment can still be achieved for small or moderate fine-tuning. In our analysis of rare decays of K and B mesons we find that due to the custodial symmetry the coupling of the Z boson to right handed quarks yields the dominant contribution. This feature of the model leads to distinct patterns and correlations that allow to distinguish the model from other frameworks of physics beyond the Standard Model (SM).

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