Predicting charmed-strange molecular tetraquarks with K ( * ) and T -doublet charmed or anticharmed meson

In this work, we first present a systematic investigation of the T c ¯ s ¯ -type charmed-strange molecular tetraquark candidates composed of a K ( * ) meson and a T -doublet anticharmed meson using the one-boson-exchange model, which exhibit exotic flavor content c ¯ s ¯ q q . Our results suggest that the K * D ¯ 1 states with I ( J P ) = 0 ( 0 − , 1 − ) and the K * D ¯ 2 * states with I ( J P ) = 0 ( 1 − , 2 − ) represent the most promising candidates of the T c ¯ s ¯ -type charmed-strange molecular tetraquarks, while the coupled K D ¯ 1 / K * D ¯ 1 / K * D ¯ 2 * system with I ( J P ) = 0 ( 1 − ) and the coupled K D ¯ 2 * / K * D ¯ 1 / K * D ¯ 2 * system with