The “ puzzle”: a new perspective

Adam Szabelski

doi:10.1140/epjc/s10052-024-13709-2

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2023 Impact factor 4.2

Particles and Fields

Open Access

Eur. Phys. J. C (2024) 84: 1319
https://doi.org/10.1140/epjc/s10052-024-13709-2

Regular Article - Theoretical Physics

The “ $B \to K π$ $B\rightarrow K\pi$ puzzle”: a new perspective

Adam Szabelski^a

National Centre for Nuclear Research, Warsaw, Poland

^a adam.szabelski@ncbj.gov.pl

Received: 29 October 2024
Accepted: 9 December 2024
Published online: 26 December 2024

Abstract

A phenomenological analysis based on the published branching fractions and CP asymmetry observables of the $B \to K π$ $B\rightarrow K\pi$ , $B \to π π$ $B\rightarrow \pi \pi$ and $B \to K K$ $B\rightarrow KK$ 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 “ $B \to K π$ $B\rightarrow K\pi$ puzzle”. The obtained precision enables to test a SU(3)-based sum rule showing $6 σ$ $6\sigma$ discrepancy with the expectation value in the Standard Model scenario. To improve the obtained results the main effort should concentrate on the $B^{0} \to K^{0} π^{0}$ $B^0\rightarrow K^0\pi ^0$ measurements.

© The Author(s) 2024

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