Range correction in the weak-binding relation for unstable states

Tomona Kinugawa; Tetsuo Hyodo

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arXiv · 2111.06619

Range correction in the weak-binding relation for unstable states

Tomona Kinugawa·Tetsuo Hyodo

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Abstract

The compositeness is defined as the weight of the hadronic molecule in the hadron wave function. We can determine the internal structure of the weak-binding system without any specific models from the compositeness. In order to estimate the compositeness of the system with a large effective range, we introduce the range correction to Weinberg's weak-binding relation by modifying the correction terms. We study the applicability of the weak-binding relations by the numerical calculation and show that the improved relation can be applied to a larger parameter region compared with the previous one.

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Tomona Kinugawa, Tetsuo Hyodo. 2021-11-12. Range correction in the weak-binding relation for unstable states. https://arxiv.org/abs/2111.06619

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