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

References in corpus (29)

• Multiquark Resonances
• Pentaquark and Tetraquark states
• Exotics: Heavy Pentaquarks and Tetraquarks
• Heavy-quark symmetry implies stable heavy tetraquark mesons $Q_i{Q}_j{\bar{q}}_k{\bar{q}}_l$
• Exclusive semileptonic and nonleptonic decays of the Bc meson
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Study of exclusive semileptonic and nonleptonic decays of $B_c^{-}$ in a nonrelativistic quark model
• Effect of charmed meson loops on charmonium transitions
• Heavy-quark spin and flavour symmetry partners of the X(3872) revisited: what can we learn from the one boson exchange model?
• Exotic meson-meson molecules and compact four--quark states
• Exotic $QQ\bar{q}\bar{q}$, $QQ\bar{q}\bar{s}$ and $QQ\bar{s}\bar{s}$ states
• Probing the long-range structure of the $T_{cc}^{+}$ with the strong and electromagnetic decays
• Doubly-heavy tetraquarks
• Dynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules
• Study of Bc --> J/psi pi, etac pi decays with perturbative QCD approach
• $B_c$ to P-Wave Charmonia Transitions in Covariant Light-Front Approach
• The study of $B_c^{-}\to X(3872){\pi }^{-}(K^{-})$ Decays in the Covariant Light-Front Approach
• Bc Meson Formfactors and Bc-->PV Decays Involving Flavor Dependence of Transverse Quark Momentum
• Doubly heavy tetraquarks in a chiral-diquark picture
• How to understand the underlying structures of $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Hidden and doubly heavy molecular states from interactions $D_{(s)}^{(\ast )}{\bar{D}}_s^{(\ast )}$/$B_{(s)}^{(\ast )}{\bar{B}}_s^{(\ast )}$ and $D_{(s)}^{(\ast )}{D}_s^{(\ast )}$/$B_{(s)}^{(\ast )}{B}_s^{(\ast )}$
• Strong decays of double-charmed pseudoscalar and scalar $cc\overline{u}\overline{d}$ tetraquarks
• Study of $B_c$ decays into charmonia and $D$ mesons
• Investigation of the possible $D{\bar{D}}^{\ast }$/$B{\bar{B}}^{\ast }$ and $D{D}^{\ast }$/$\bar{B}{\bar{B}}^{\ast }$ molecule states
• Measurement of the $B_c^{-}$ meson lifetime in the decay $B_c^{-}\to J/\psi {\pi }^{-}$
• $B_c(B)\to Dl\tilde{\nu }$ form factors in Light-Cone Sum Rules and the $D$-meson distribution amplitude
• Possibility of $T_{c\bar{s}}(2900)$ as the resonance-like structure induced by threshold effects
• Production of $Z_c(3900$) and $Z_c(4020)$ in $B_c$ decay
• Search for a promising tetraquark candidate $X(ud\bar{s}\bar{s})$ in $pn\to \Lambda \Lambda X$

Cited by in corpus (1)

• Investigating the two-pion exchange of the double charm $D{D}^{\ast }$ chiral interactions and $T_{cc}$