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hep-ph2025
Nature of the states from compositeness criteria
Yu-Fei Wang, Chao-Wei Shen, Deborah Rönchen +3
Based on a coupled-channel approach, we investigate the structures of four states through compositeness criteria. Toward a more precise description of the states, we have obt…
hep-ph2025
Box Singularity Conditions in Box Diagrams of Decay Processes
Chao-Wei Shen, Ming-Yang Duan, Jia-Jun Wu
Since 1959, singularities within single-loop diagrams have been studied. They are believed to significantly influence our understanding of experimental observables. In this study,…