Searching for doubly charmed tetraquark candidates $T_{cc}$ and $T_{cc\bar{s}}$ in $B_c$ decays

Abstract

In this work, we propose to search for the exotic doubly charmed meson $T_{cc}^{+}$ and its analog $T_{cc\bar{s}}^{+}$ in $B_c^{+}$ decays, which provide a good environment for the formation of the exotic state containing double charm quarks. Within the molecular scheme, the production of $T_{cc}^{+}$ and $T_{cc\bar{s}}^{+}$ through various rescattering processes with different intermediate states are investigated. For the moderate values of model parameters, the branching ratios of $B_c^{+}$ decaying into $T_{cc}^{+}{\bar{D}}^0$, $T_{cc}^{+}{\bar{D}}^{\ast 0}$, $T_{cc\bar{s}}^{+}{\bar{D}}^0$ and $T_{cc\bar{s}}^{+}{\bar{D}}^{\ast 0}$ are estimated to be of the order of $10^{-7}$, $10^{-5}$, $10^{-6}$ and $10^{-4}$, respectively, which may be tested by future experiments.

9 pages, 8 figures

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Cited by in corpus (5)

• Higher molecular $P_{\psi s}^{\Lambda /\Sigma }$ pentaquarks arising from the ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}_1/{\Xi }_c^{(\prime ,\ast )}{\bar{D}}_2^{\ast }$ interactions
• Doubly heavy tetraquark states in a mass splitting model
• Isospin violation effect and three-body decays of the $T_{cc}^{+}$ state
• Spectroscopic Properties of Double-Strangeness Molecular Tetraquarks
• Investigating the two-pion exchange of the double charm $D{D}^{\ast }$ chiral interactions and $T_{cc}$