Planck-safe U(1)' Extensions Explaining RK(*)

26 Aug 2021, 17:40
20m
ZR4

ZR4

Flavor Physics and CP Violation Flavor Physics and CP Violation

Speaker

Tim Höhne (TU Dortmund)

Description

We report on a new class of flavorful $Z^\prime$-extensions of the standard model, which explain the recent hints for lepton universality violation in $R_{K^{(*)}}$-data.
The models feature new vector-like fermions as well as additional scalar fields around the electroweak scale or above.
On top of well-known theoretical and phenomenological constraints, we require stable and Landau-pole free coupling constant evolution up to the Planck scale.
We identify viable "Planck safe" benchmark scenarios and discuss phenomenological implications.

Authors

Rigo Bause (TU Dortmund) Gudrun Hiller (Technische Universitaet Dortmund (DE)) Tim Höhne (TU Dortmund) Daniel Litim (University of Sussex) Tom Steudtner (TU Dortmund)

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