Resonant contribution of the three-body decay process $\bar B_{s}\rightarrow K^{+}K^{-} P$ in perturbation QCD

TL;DR

This paper studies CP violation in the decay of _s mesons into three-body final states involving kaons and pseudoscalar mesons, highlighting interference effects of vector mesons within perturbative QCD.

Contribution

It introduces a detailed analysis of interference effects among , , and  vector mesons in _s decays using perturbative QCD, providing new amplitude calculations.

Findings

Obvious CP violation at vector meson interference regions.

Localized CP violation predicted for three-body decay processes.

Results are relevant for upcoming LHC experiments.

Abstract

We investigate the CP violation in the decay process $\bar B_{s} \rightarrow \phi(\rho,\omega) P \rightarrow K^{+}K^{-}P$ by considering the interference effects of $\phi\rightarrow K^{+}K^{-}$, $\rho\rightarrow K^{+}K^{-}$ and $\omega\rightarrow K^{+}K^{-}$ within the framework of perturbative QCD method (P refers to $\pi$, K, $\eta$ and $\eta'$ pseudoscalar mesons, respectively). We analyse the mixings of $\phi-\rho^{0}$, $\phi-\omega$ and $\omega-\rho^{0}$ and provide the amplitudes of the quasi-two-body decay processes. The CP violation for $\bar B_{s} \rightarrow K^{+}K^{-} P$ decay process is obvious at the ranges of the three vector mesons interferences. Meanwhile, the localised CP violation can be found for comparing with the experiment results from three-body decay process at the LHC in the near future.