Electroweak penguins, final state interaction phases, and cp violation in B→Kπ decays
Journal
Physical Review Letters
Journal Volume
12
Journal Issue
3
Pages
2240-2243
Date Issued
2019
Author(s)
Abstract
The recently observed B-→K-π0, ¯K0π- and ¯B0→K-π+ decay modes appear to have nearly equal branching ratios. This suggests that tree and electroweak penguins play an important role, and inclusion of the latter improves agreement between factorization calculation and experimental data. The value of ? in the range of 90°–130° and 220°–260° is favored, while the ¯B0→K-π0 rate is suppressed. Direct CP violation for B→Kπ modes can be large if final state interaction phases are large. © 1999 The American Physical Society.
Type
journal article