Semileptonic and nonleptonic decays of the axial-vector tetraquark $T_{bb;\overline{u} \overline{d}}^{-}$. (arXiv:2008.02049v2 [hep-ph] UPDATED)

The semileptonic and nonleptonic decays of the double-beauty axial-vector tetraquark $T_{bb;\overline{u} \overline{d}}^{-}$ to a state $T_{bc; \overline{u}\overline{d}}^{0}$ (hereafter $T_{bb}^{-}$ and $\widetilde{T} _{bc}^{0}$, respectively) are investigated in the context of the

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