Study of the $K^+ K^-$ invariant-mass dependence of CP asymmetry in $B^+ \rightarrow K^+ K^- K^+$ decays

TL;DR

This paper investigates how CP asymmetry varies with the $K^+ K^-$ invariant mass in $B^+ ightarrow K^+ K^- K^+$ decays, comparing BABAR and LHCb results using a large data sample.

Contribution

It provides a detailed analysis of the $K^+ K^-$ invariant-mass dependence of CP asymmetry in $B^+$ decays, extending previous amplitude analyses with new data and comparison to LHCb findings.

Findings

Observed $K^+ K^-$ mass dependence of CP asymmetry.

Compared BABAR results with LHCb measurements.

Enhanced understanding of CP violation in three-body B decays.

Abstract

As a followup to the latest BABAR amplitude analysis of the decay $B^+ \rightarrow K^+ K^- K^+$, we investigate the $K^+ K^-$ invariant-mass dependence of the CP asymmetry and compare it to that obtained by the LHCb collaboration. The results are based on a data sample of approximately $470 \times 10^6 B\bar{B}$ decays, collected with the BABAR detector at the PEP-II asymmetric-energy $B$ factory at the SLAC National Accelerator Laboratory.