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arXiv · 2509.01289

Composite nature of exotic states from data analysis

Xian-Wei Kang
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Abstract

We introduce two basic concepts: the compositeness for resonance and the Castillejo-Dalitz-Dyson (CDD) pole. Applying them to hadron states $X(3872)$, $Z_b(10610)$ and $Z_b(10650)$, and $T_{cc}$, we obtain their compositeness values and achieve deeper insights into their inner structure.

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Xian-Wei Kang. 2025-09-01. Composite nature of exotic states from data analysis. https://arxiv.org/abs/2509.01289

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