Production of $D_{s0}(2590{)}^{+}$ in $B$ nonleptonic decays

Shuang-Tao Wang, Su-Yan Pei, Tianhong Wang +1

In 2021, a new charm-strange meson, $D_{s0}(2590{)}^{+}$, has been discovered, it is believed to be the $D_s^{+}(2^1{S}_0)$. However, its low mass and wide width are challenged by theoreti…