Global CP asymmetries in charmless three-body $B$ decays with final state interactions

Abstract

We propose a theoretical framework to understand the observable charge-parity (CP) violation in charmless three-body B ± decays. The decay amplitudes put together the ππ → KK re-scattering and the U-spin symmetry, treated within a CPT invariant framework. This approach applied to a two-channel model provides the magnitudes and signs of the ratios of the global CP asymmetries for B