Signature decay modes of the compact doubly-heavy tetraquarks $T_{bb\bar{u}\bar{d}}$ and $T_{bc\bar{u}\bar{d}}$

Ahmed Ali, Ishtiaq Ahmed, Muhammad Jamil Aslam

Based on the expectations that the lowest-lying doubly-bottom tetraquark $T_{bb\bar{u}\bar{d}}$ ($J^P=1^{+}$) and the bottom-charm tetraquark $T_{bc\bar{u}\bar{d}}$ ($J^P=0^{+}$) are…