The "$B \to K{\pi}$ puzzle": A New Perspective

TL;DR

This paper presents a phenomenological analysis of B meson decay data, revealing a significant discrepancy with Standard Model predictions and proposing a new perspective on the '$B o K o ext{pi}$ puzzle.

Contribution

It introduces a comprehensive amplitude analysis using topological diagrams and SU(3) symmetry, providing a new interpretation of the '$B o K o ext{pi}$ puzzle' and testing a sum rule with notable deviation.

Findings

6σ discrepancy in the SU(3)-based sum rule

Identification of the '$B o K o ext{pi}$ puzzle'

Highlighting the need for improved $B^0 o K^0 ext{pi}^0$ measurements

Abstract

A phenomenological analysis based on the published branching fractions and $CP$ asymmetry observables of the $B\to K\pi$, $B\to\pi\pi$ and $B\to KK$ dataset is performed. The amplitude decomposition by the topological diagrams and the $SU(3)$ irreducible representation is used. The result of the global fit can be interpreted as a solution to the ``$B\to K\pi$ puzzle''. The obtained precision enables to test a $SU(3)$-based sum rule showing $6\sigma$ discrepancy with the expectation value in the Standard Model scenario. To improve the obtained results the main effort should concentrate on the $B^0\to K^0\pi^0$ measurements.