https://doi.org/10.1051/epjconf/202429103004
Compositeness of near-threshold exotic hadrons with decay and coupled-channel effects
Department of Physics, Tokyo Metropolitan University, Hachioji 192-0397, Japan
* kinugawa-tomona@ed.tmu.ac.jp
** hyodo@tmu.ac.jp
Published online: 16 February 2024
Abstract. The near-threshold exotic hadrons such as Tcc and X(3872) are naively considered as the hadronic molecular state from the viewpoint of the low-energy universality. However, it is also known that the elementary dominant state is not completely excluded as the internal structure of the near-threshold states. Furthermore, the dominance of molecules is expected to be modified by the decay or coupled channels. We discuss these features of the near-threshold bound states by calculating the compositeness with the effective field theory.
© The Authors, published by EDP Sciences, 2024
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