Doubly-heavy tetraquark bound states and resonances

Abstract

We review the predictions of the quark model for the doubly-heavy tetraquarks $QQ\bar{q}\bar{q}$. The possibility of resonances near the $B{B}^{\ast }$ threshold in addition to a deeply bound state is discussed.

Comments: Talk presented by J.-M. Richard at QCD22, Montpellier (France), July 4-7, 2022