Searching for a vector-like B quark through a tW decay channel at future electron–positron colliders Lin Han, Jie-Fen Shen and Yao-Bei Liu Eur. Phys. J. C, 82 7 (2022) 637 Published online: 25 July 2022 DOI: 10.1140/epjc/s10052-022-10527-2