Discovery potentials of double-charm tetraquarks

Abstract

In this study, we investigate the discovery potential of double-charm tetraquarks $T_{[\bar{q}{\bar{q}}^{\prime }]}^{\{cc\}}$. We find that their production cross sections at the LHCb with $\sqrt{s}=13$ TeV reach $\mathcal{O}(10^4)$ pb, which indicates that the LHCb has collected $\mathcal{O}(10^8)$ such particles. Through the decay channels of $T_{[\bar{u}\bar{d}]}^{\{cc\}}\to D^{+}{K}^{-}{\pi }^{+}$ or $D^0{D}^{+}\gamma$ (if stable) or $T_{[\bar{u}\bar{d}]}^{\{cc\}}\to D^0{D}^{\ast +}\to D^0{D}^0{\pi }^{+}$ (if unstable), it is highly expected that they get discovered at the LHCb in the near future. We also discuss the productions and decays of the double-charm tetraquarks at future Tera-$Z$ factories.

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Cited by in corpus (48)

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