Dalitz-plot dependence of CP asymmetry in B+- --> K+- K+ K- decays

TL;DR

This paper investigates the CP asymmetry in B+- --> K+- K+ K- decays, focusing on how it varies across the Dalitz plot, and compares theoretical predictions with experimental data from LHCb and BABAR.

Contribution

The study extends existing models by including S-, P-, and D-wave contributions to better explain the observed CP asymmetry patterns.

Findings

Confirmed large CP asymmetry above the phi(1020) resonance

Model with multiple waves matches experimental data well

Provides insights into the resonance contributions to CP violation

Abstract

A large CP asymmetry predicted recently in the framework of the QCD factorization model for the B+- --> K+- K+ K- decays in the range of the K+ K- invariant masses above the phi(1020) resonance has been confirmed by the LHCb Collaboration. We discuss the emergence and size of this asymmetry in an extended model involving S- and P-waves together with the contribution from the D-wave f2(1270) resonance and compare our model with the experimental data of the LHCb and BABAR Collaborations.