Final state interactions in the decay $B^0 \to \eta_c K^*$

TL;DR

This paper investigates how final-state rescattering influences the decay $B^0 o ta_c K^*$, showing that these effects are significant and help align theoretical predictions with experimental observations.

Contribution

It provides a detailed analysis of rescattering effects in $B^0$ decay, demonstrating their importance and quantifying their impact on decay amplitudes.

Findings

Rescattering effects are comparable to naive factorizable contributions.

Total amplitudes including rescattering match experimental data.

Final-state interactions are crucial for accurate decay modeling.

Abstract

In this article, we study the final-state rescattering effects in the decay $B^0 \to \eta_cK^*$, the numerical results indicate the corrections are comparable with the contribution from the naive factorizable amplitude, and the total amplitudes can accommodate the experimental data.