Perfect $D{D}^{\ast }$ molecular prediction matching the $T_{cc}$ observation at LHCb

Abstract

In 2012, we investigated the possible molecular states composed of two charmed mesons [Phys.Rev. D 88, 114008 (2013), arXiv:1211.5007 [hep-ph](2012)]. The $D^{\ast }D$ system with the quantum numbers of $I(J^P)=0(1^{+})$ was found to be a good candidate of the loosely bound molecular state. This state is very close to the $D^{\ast }D$ threshold with a binding energy around 0.47 MeV. This prediction was confirmed by the new LHCb observation of $T_{cc}^{+}$ [see Franz Muheim's talk at the European Physical Society conference on high energy physics 2021].

2 pages, 2 figures

References in corpus (2)

• Pentaquark and Tetraquark states
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$

Cited by in corpus (28)

• A survey of heavy-heavy hadronic molecules
• Coupled-channel approach to $T_{cc}^{+}$ including three-body effects
• $T_{cc}^{+}$ coupled channel analysis and predictions
• $T_{cc}^{+}$ and its partners
• Systematics of the heavy flavor hadronic molecules
• Magnetic dipole moments of the $T_{cc}^{+}$ and $Z_V^{++}$ tetraquark states
• The production of doubly charmed exotic hadrons in heavy ion collisions
• Emergence of molecular-type characteristic spectrum of hidden-charm pentaquark with strangeness embodied in the $P_{\psi s}^{\Lambda }(4338)$ and $P_{cs}(4459)$
• Prediction of new $T_{cc}$ states of $D^{\ast }{D}^{\ast }$ and $D_s^{\ast }{D}^{\ast }$ molecular nature
• Doubly charmed molecular pentaquarks
• Multiplicity of the doubly charmed state $T_{cc}^{+}$ in heavy-ion collisions
• Colour and baryon number fluctuation of preconfinement system in production process and T_cc structure
• Investigating new type of doubly-charmed molecular tetraquarks composed of the charmed meson in $H$-doublet and the charmed meson in $T$-doublet
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Masses and widths of the exotic molecular $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Triple-charm molecular states composed of $D^{\ast }{D}^{\ast }D$ and $D^{\ast }{D}^{\ast }{D}^{\ast }$
• Interactions of the doubly charmed state $T_{cc}^{+}$ with a hadronic medium
• A new group of doubly charmed molecule with $T$-doublet charmed meson pair
• 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
• Double-charm heptaquark states composed of two charmed mesons and one nucleon
• Doubly heavy tetraquark states in a mass splitting model
• Exotic states with triple charm
• Entanglement suppression and low-energy scattering of heavy mesons
• hidden charm decays of $X(4014)$ in a $D^{\ast }{\bar{D}}^{\ast }$ molecule scenario
• Molecular states in $D_s^{(\ast )+}{\Xi }_c^{{(}^{\prime },\ast )}$ systems
• Spectroscopic Properties of Double-Strangeness Molecular Tetraquarks
• Induced fission-like process of hadronic molecular states
• Electromagnetic characteristics as probes into the inner structures of the predicted ${\Xi }_c^{{(}^{\prime },\ast )}{D}_s^{(\ast )}$ molecular states