Speaker
Leon Heuser
(HISKP, Bonn)
Description
We utilize the universality of pion--pion ($\pi\pi$) final-state interactions at small invariant masses to understand their enhanced local CP violation in $B^\pm\to K^\pm\pi^+\pi^-$, using a dispersive approach. From the integrated CP-asymmetry data, we predict the Dalitz-plot kinematic distribution of the asymmetry in the low-energy $\pi\pi$ region, including the large local CP violation recently observed by LHCb. An essential role is played by the contributions of isospin 2. This formalism, whose parameters have a physical meaning, should be easy to implement in other systems with CP violation enhanced by final-state interactions.
| Discipline | Theory |
|---|---|
| Topic | Mixing and CP Violation |
Author
Leon Heuser
(HISKP, Bonn)
Co-authors
Ms
Alba Reyes-Torrecilla
(Universidad Complutense de Madrid)
Dr
Bastian Kubis
(HISKP, Bonn)
Prof.
Christoph Hanhart
(FSZ Jülich)
Prof.
Jose Ramon Pelaez
(Universidad Complutense de Madrid)
Dr
Patricia Magalhães
(Universidade Estadual de Campinas)
Prof.
Thomas Mannel
(CPPS, Siegen)