Non-factorizable contribution in B decays

TL;DR

This paper investigates the non-factorizable contributions in B meson decays by combining naive factorization estimates with a dynamical approach using the hard pion technique, comparing results with experimental data.

Contribution

It introduces a method to calculate non-factorizable effects in B decays using the hard pion technique within the infinite momentum frame, enhancing understanding of decay amplitudes.

Findings

Non-factorizable contributions are significant in B decays.

The approach aligns with experimental observations.

Dynamical hadron state contributions are crucial.

Abstract

Two body decays of B mesons are studied by decomposing their amplitude into a sum of factorizable and non-factorizable ones. The former is estimated by using a naive factorization while the latter is assumed to be dominated by dynamical contributions of various hadron states and is calculated by using a hard pion (or kaon) technique in the infinite momentum frame. Possible roles of the non-factorizable contributions are discussed by comparing the result with experiments.