Karlsruhe 2011 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 15: Flavourphysik (Theorie) II

T 15.3: Gruppenbericht

Freitag, 1. April 2011, 14:30–14:50, 30.23: 3-1

Randall-Sundrum Corrections to the Width Difference and CP-Violating Phase in B_s⁰-Meson Decays — Florian Goertz and •Torsten Pfoh — Institut für Physik, JGU Mainz

In many new physics scenarios, one expects big corrections to the B_s⁰-B_s⁰ mixing amplitude M₁₂^s. This gives rise to a new CP violating phase, which tends to suppress the width difference of the heavy and the light meson state, given that there is no large enhancement of the decay amplitude Γ₁₂^s. In this talk, I will discuss corrections to both M₁₂^s and Γ₁₂^s for Randall-Sundrum models with a brane-localized Higgs sector. The implications on the width difference, as well as the time-dependent asymmetry S_ψφ, and the semileptonic CP asymmetry A_SL^s are investigated.