$X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ molecular state

Abstract

Very recently the LHCb Collaboration reported the discovery of two open charm tetraquark states, $X_0(2866)$ and $X_1(2904)$. In the present work, we study the $D^{(\ast )}$ and ${\bar{K}}^{(\ast )}$ interaction in the one-boson exchange model and show that the $X_0(2866)$ can be understood as a $D^{\ast }{\bar{K}}^{\ast }$ molecule with $I(J^P)=0(0^{+})$, or at least it has a large molecular component. On the other hand, the $X_1(2904)$ can not be interpreted as a molecular state. Inspired by the discovery of the $X_0(2866)$ and the fact that the $D^{\ast }{\bar{K}}^{\ast }$ interaction is strong enough to generate a bound state, we also discuss likely existence of other open charm molecules. In the meson-meson sector, two molecules near the mass thresholds of $D{D}^{\ast }$ and $D^{\ast }{D}^{\ast }$ with $I(J^P)=0(1^{+})$ are obtained, and using the heavy quark flavor symmetry their $\bar{B}{\bar{B}}^{\ast }$ and ${\bar{B}}^{\ast }{\bar{B}}^{\ast }$ counterparts are also predicted. In the meson-baryon sector, 7 open charm molecules with $I=1/2$ near the mass thresholds of $D^{(\ast )}{\Sigma }_c^{(\ast )}$ naturally appear, as dictated by the heavy quark spin symmetry.

arXiv comment2 tables, 4 figures

References in corpus (35)

• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• The hidden-charm pentaquark and tetraquark states
• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Hidden Local Symmetry at Loop -- A New Perspective of Composite Gauge Boson and Chiral Phase Transition
• Implications of a DK Molecule at 2.32 GeV
• Dynamically Generated Open and Hidden Charm Meson Systems
• Discovery of doubly-charmed Xi_{cc} baryon implies a stable (b b ubar dbar) tetraquark
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Exotic QQ\qbar\qbar States in QCD
• Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• X(3872) and Other Possible Heavy Molecular States
• Lattice Prediction for Deeply Bound Doubly Heavy Tetraquarks
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Interactions of Charmed Mesons with Light Pseudoscalar Mesons from Lattice QCD and Implications on the Nature of the D_{s0}^*(2317)
• Study of doubly heavy tetraquarks in Lattice QCD
• $Z_b(10610{)}^{\pm }$ and $Z_b(10650{)}^{\pm }$ as the $B^{\ast }\bar{B}$ and $B^{\ast }{\bar{B}}^{\ast }$ molecular states
• Heavy quark spin symmetric molecular states from ${\bar{D}}^{(\ast )}{\Sigma }_c^{(\ast )}$ and other coupled channels in the light of the recent LHCb pentaquarks
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$
• Axial Resonances in the Open and Hidden Charm Sectors
• Exploring the molecular scenario of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$
• Charmed Tetraquarks Tcc and Tcs from Dynamical Lattice QCD Simulations
• A new interpretation for the $D_{s2}^{\ast }(2573)$ and the prediction of novel exotic charmed mesons
• Heavy-quark spin and flavour symmetry partners of the X(3872) revisited: what can we learn from the one boson exchange model?
• Lattice QCD investigation of a doubly-bottom $\bar{b}\bar{b}ud$ tetraquark with quantum numbers $I(J^P)=0(1^{+})$
• Scattering lengths of Nambu-Goldstone bosons off $D$ mesons and dynamically generated heavy-light mesons
• D* K molecular structure of the Ds1(2460) meson
• Strong decays of the latest LHCb pentaquark candidates in hadronic molecule pictures
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• $P_c$ pentaquarks with chiral tensor and quark dynamics
• One pion exchange and the quantum numbers of the Pc(4440) and Pc(4457) pentaquarks
• ${\bar{B}}^{(\ast )}{\bar{B}}^{(\ast )}$ interactions in chiral effective field theory
• Possible molecular states in $B^{(\ast )}{B}^{(\ast )}$ scatterings

Cited by in corpus (69)

• An updated review of the new hadron states
• A survey of heavy-heavy hadronic molecules
• Coupled-channel approach to $T_{cc}^{+}$ including three-body effects
• Tetra- and penta-quark structures in the constituent quark model
• Hadronic molecules in B decays
• Analysis of the $X_0(2900)$ as the scalar tetraquark state via the QCD sum rules
• A study of the decays of $S-$wave ${\bar{D}}^{\ast }{K}^{\ast }$ hadronic molecules: the scalar $X_0(2900)$ and its spin partners $X_{J(J=1,2)}$
• The $X_0(2900)$ and its heavy quark spin partners in molecular picture
• $X_{0,1}$(2900) and $(D^{-}{K}^{+})$ invariant mass from QCD Laplace sum rules at NLO
• Mass spectrum and strong decays of tetraquark $\bar{c}\bar{s}qq$ states
• New scalar resonance $X_0(2900)$ as a ${\overline{D}}^{\ast }{K}^{\ast }$ molecule: Mass and width
• Heavy-strange meson molecules and possible candidates $D_{s0}^{\ast }(2317)$, $D_{s1}(2460)$, and $X_0(2900)$
• How to understand the $X(2900)$?
• Discriminating among interpretations for the $X(2900)$ states
• Doubly charmed molecular pentaquarks
• Heavy-hadron molecules from light-meson-exchange saturation
• The $\mathbf{sQ}\bar{\mathbf{q}}\bar{\mathbf{q}}$ $(\mathbf{q}=\mathbf{u},\mathbf{d};\mathbf{Q}=\mathbf{c},\mathbf{b})$ tetraquarks in the chiral quark model
• Excited $K$ meson, $K_c(4180)$, with hidden charm as a $D\bar{D}K$ bound state
• Tetraquarks with open charm favor
• The $T_{c\bar{s}}(2900)$ as a threshold effect from the interaction of the $D^{\ast }{K}^{\ast }$, $D_s^{\ast }\rho$ channels
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Charmed-strange tetraquarks and their decays in a potential quark model
• Masses and widths of the exotic molecular $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Mass spectra and decays of open-heavy tetraquark states
• Is $X(7200)$ the heavy anti-quark diquark symmetry partner of $X(3872)$?
• On the structures of new scalar resonances $T_{cs0}^a(2900{)}^{++}$ and $T_{cs0}^a(2900{)}^0$
• X_1(2900) as a D_1 K molecule
• The decays of the fully open flavor state $T_{c\bar{s}0}^0$ in a $D^{\ast }{K}^{\ast }$ molecule scenario
• Possible molecular states of ${\bar{D}}^{\ast }{K}^{\ast }$ ($D^{\ast }{K}^{\ast }$) and the new exotic states $X_0(2900)$ and $X_1(2900)$ ($T_{cs0}^a(2900{)}^0$ and $T_{cs0}^a(2900{)}^{++}$)
• Vector resonance $X_1(2900)$ and its structure
• Monte-Carlo Based QCD Sum Rules Analysis of $X_0(2900)$ and $X_1(2900)$
• $X_J(2900)$ states in a hot hadronic medium
• Modeling the resonance $T_{cs0}^a(2900{)}^{++}$ as a hadronic molecule $D^{\ast +}{K}^{\ast +}$
• Spectrum of the molecular tetraquarks: Unraveling the $T_{cs0}(2900)$ and $T_{c\bar{s}0}^a(2900)$
• Color flux-tube nature of the states $T_{cs}(2900)$ and $T_{c\bar{s}}^a(2900)$
• Analysis of the $T_{c\bar{s}}(2900)$ and related tetraquark states with the QCD sum rules
• X(2900) in a chiral quark model
• Possibility of $T_{c\bar{s}}(2900)$ as the resonance-like structure induced by threshold effects
• Unified description of the $Qs\bar{q}\bar{q}$ molecular bound states, molecular resonances and compact tetraquark states in the quark potential model
• Prediction of possible $D{K}_1$ bound states
• The roles of the $T_{c\bar{s}0}(2900{)}^0$ and $D_0^{\ast }(2300)$ in the process $B^{-}\to D_s^{+}{K}^{-}{\pi }^{-}$
• Magnetic moment of the $X_1(2900)$ state in the diquark-antidiquark picture
• Studying the ${\bar{D}}_{1}K$ molecule in the Bethe-Salpeter equation approach
• Molecular states of $D^{\ast }{D}^{\ast }{\bar{K}}^{\ast }$ nature
• $P_{cc}^N$ states in a unitarized coupled-channel approach
• Looking for the exotic $X_0(2866)$ and its $J^P=1^{+}$ partner in the ${\bar{B}}^0\to D^{(\ast )+}{K}^{-}{K}^{(\ast )0}$ reactions
• Doubly charmed pentaquark states in QCD sum rules
• Searching for $X_0(2900)$ and $X_1(2900)$ through the kaon induced reactions
• Is the resonance $X_0(2900)$ a ground-state or radially excited scalar tetraquark $[ud][\overline{c}\overline{s}]$?
• The role of electromagnetic interaction in the $X(3872)$ and its analogs
• Possible charmed-strange molecular dibaryons
• Isospin violation effect and three-body decays of the $T_{cc}^{+}$ state
• Possible open charm molecular pentaquarks from ${\Lambda }_c{K}^{(\ast )}/{\Sigma }_c{K}^{(\ast )}$ interactions
• Double pole structures of $X_1(2900)$ as the $P$-wave ${\bar{D}}^{\ast }{K}^{\ast }$ resonances
• Weak-decay searches for $Qs\bar{u}\bar{d}$ tetraquarks
• Investigating the Isospin Property of $T_{cc}^{+}$ from its Dalitz Plot Distribution
• Molecular states in $D_s^{(\ast )+}{\Xi }_c^{{(}^{\prime },\ast )}$ systems
• Spectroscopic Properties of Double-Strangeness Molecular Tetraquarks
• Observation of the open-charm tetraquark candidate $T_{cs0}^{\ast }(2870{)}^0$ in the $B^{-}\to D^{-}{D}^0{K}_{\mathrm{S}}^0$ decay
• Predictions of super-exotic heavy mesons from $K^{\ast }{B}^{\ast }{B}^{\ast }$ interactions
• Investigation on the bottom analogs of the $T_{cc}^{+}$
• $D_1(2420)$ and its interactions with a kaon: open charm states with strangeness
• Theoretical study of the open-flavor tetraquark $T_{c\bar{s}}(2900)$ in the process ${\bar{B}}_s^0\to K^0{D}^0{\pi }^0$
• Strong decays of $a_0$, $f_0$, $f_2$, and $K_2^{\ast }$ resonances as dynamically generated states of two vector mesons
• Possible ${\Sigma }_c^{\ast }\bar{\Sigma }$ molecular states
• Five-flavor molecular pentaquarks in the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems
• Investigation of $T_{cs0}^{\ast }(2870{)}^0$ in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the PACIAE model
• Exotic hadrons associated with $b$-quark
• Predicting charmed-strange molecular tetraquarks with $K^{(\ast )}$ and $T$-doublet charmed or anticharmed meson