New insights into the doubly charmed exotic mesons Di Guo, Qin-He Yang, Ling-Yun Dai and A. P. Szczepaniak Eur. Phys. J. C, 85 4 (2025) 389 Published online: 05 April 2025 DOI: 10.1140/epjc/s10052-025-14111-2