An analysis on doubly bottom molecular tetraquarks composed of $H_{(s)}$ and $T_{(s)}$ doublets (2504.13431v3)

Abstract: In this work, we investigate the doubly bottom $H_{(s)}\bar{T}{(s)}$ and $H{(s)}T_{(s)}$ systems by adopting the one-boson-exchange model, where $H_{(s)}$ and $T_{(s)}$ represent $S$-wave $B^{(*)}_{(s)}$ and $P$-wave $B^{(*)}_{(s)1,2}$ doublets, respectively. For the $H\bar{T}$ systems, we predict some loosely bound states in the $I(J^{PC})=0(1^{-\pm})$ $B\bar{B}{1}$, $I(J^{PC})=0(2^{--})$ $B\bar{B}{2}^{*}$, $I(J^{PC})=0(1^{-\pm})$ $B^*\bar{B}_{1}$ and $I(J^{PC})=0(2^{-\pm})$ $B^\bar{B}_{2}^{}$ channels, which are the most promising hidden bottom molecular tetraquarks. For the $HT$ systems, the $I(J^{P})=0(1^{-})$ $B^*B_1$ and $I(J^{P})=0(2^{-})$ $B^{}B^{}_2$ channels are also likely to form molecular tetraquarks. In contrast, no molecular candidates have been identified in the bottom-strange sectors. One can hope that our predictions will provide valuable insights to the LHCb and Belle II Collaborations as they continue to explore this fascinating field through experimental research.