Anomalous radiative transitions between $h_b(nP)$ and $\eta_b(mS)$ and hadronic loop effect

TL;DR

This paper investigates anomalous radiative transitions in bottomonium states, demonstrating that hadronic loop effects can explain recent experimental observations and deepen understanding of bottomonium decay mechanisms.

Contribution

The study introduces hadronic loop contributions as an explanation for anomalous radiative transitions in bottomonium, providing a new perspective on decay mechanisms.

Findings

Hadronic loop effects can account for observed anomalies.

The mechanism aligns with recent Belle experimental results.

Enhances understanding of bottomonium radiative decay processes.

Abstract

In this work, we introduce the hadronic loop contribution to explain the anomalous radiative transitions between $h_b(nP)$ and $\eta_b(mS)$, which was recently observed by the Belle Collaboration. Our calculation shows that the hadronic loop mechanism associated with these known decay mechanisms can explain why there exist anomalous radiative transitions between $h_b(nP)$ and $\eta_b(mS)$. This study deepens our understanding of the decay mechanism of higher bottomonium radiative decays.