SU(3) analysis of fully-light tetraquarks in heavy meson weak decays Yu-Ji Shi, Ye Xing and Zhen-Xing Zhao Eur. Phys. J. C, 81 2 (2021) 156 Published online: 15 February 2021 DOI: 10.1140/epjc/s10052-021-08954-8