# 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman

26-31 July 2021
Mexico City
Mexico/General timezone
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# Range correction in the weak-binding relation for unstable states

## Speakers

• Ms. Tomona KINUGAWA

## Abstract

To determine the fraction of a hadronic molecule component of exotic hadrons in a model-independent manner, we consider the weak-binding relation. However, it dose not work well for the systems with a large effective range such as $\Lambda_c(2595)$. We introduce the range correction to the relation and we perform the numerical calculation to search for the parameter regions where the weak-binding relation works. We find the region where only the improved weak-binding relation can be applied.