Open charm and bottom tetraquarks in an extended relativized quark model

Abstract

In present work, we systematically calculate the mass spectra of open charm and bottom tetraquarks $qq\bar{q}\bar{Q}$ within an extended relativized quark model. The four-body relativized Hamiltonians including the Coulomb potential, confining potential, spin-spin interactions, and relativistic corrections are solved by using the variational method. It is found that the predicted masses of four $0^{+}$ $ud\bar{s}\bar{c}$ states are 2765, 3065, 3152, and 3396 MeV, which disfavor the assignment of the newly observed $X_0(2900)$ as a compact tetraquark. Moreover, the whole mass spectra of the open charm and bottom tetraquarks show quite similar patterns, which preserve the light flavor SU(3) symmetry and heavy quark symmetry well. In addition, our results suggest that the flavor exotic states $nn\bar{s}\bar{c}$, $nn\bar{s}\bar{b}$, $ss\bar{n}\bar{c}$, and $ss\bar{n}\bar{b}$ and their antiparticles can be searched in the heavy-light meson plus kaon final states by future experiments. More theoretical and experimental efforts are needed to investigate these singly heavy tetraquarks.

11 pages, 3 figures, comments and suggestions are welcome

References in corpus (24)

• Heavy quarkonium: progress, puzzles, and opportunities
• Multiquark Resonances
• Pentaquark and Tetraquark states
• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Exotics: Heavy Pentaquarks and Tetraquarks
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• Masses of doubly heavy tetraquarks $T_{Q{Q}^{\prime }}$ in a relativized quark model
• Four-quark structure of Zc(3900), Z(4430) and Xb(5568) states
• Masses of tetraquarks with open charm and bottom
• AdS-QCD quark-antiquark potential, meson spectrum and tetraquarks
• Open-flavor charmed/bottom $sq\bar{q}\bar{Q}$ and $qq\bar{q}\bar{Q}$ tetraquark states
• $B_s{\pi }^{+}$ scattering and search for X(5568) with lattice QCD
• Is the newly reported $X(5568)$ a $B\bar{K}$ molecular state?
• Where does the X(5568) structure come from?
• $B_s\pi$--$B\bar{K}$ interactions in finite volume and the $X(5568)$
• HALL POST INEQUALITIES: review and application to molecules and tetraquarks
• Chiral SU(3) Quark Model Study of Tetraquark States: $cn\bar{n}\bar{s}/cs\bar{s}\bar{s}$
• Weak Decays of Stable Open-bottom Tetraquark by SU(3) Symmetry Analysis
• Tetraquarks with charm in coupled-channel formalism
• Resonance $X(5568)$ as an exotic axial-vector state
• Magnetic moment of $X_Q$ state with $J^{PC}=1^{+\pm }$ in light cone QCD sum rules

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• Fully-heavy tetraquark production by $\gamma \gamma$ interactions in hadronic collisions at the LHC
• 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
• Tetraquarks with open charm favor
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Charmed-strange tetraquarks and their decays in a potential quark model
• On the structures of new scalar resonances $T_{cs0}^a(2900{)}^{++}$ and $T_{cs0}^a(2900{)}^0$
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• Modeling the resonance $T_{cs0}^a(2900{)}^{++}$ as a hadronic molecule $D^{\ast +}{K}^{\ast +}$
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• Analysis of the $T_{c\bar{s}}(2900)$ and related tetraquark states with the QCD sum rules
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• Unified description of the $Qs\bar{q}\bar{q}$ molecular bound states, molecular resonances and compact tetraquark states in the quark potential model
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• Studying the ${\bar{D}}_{1}K$ molecule in the Bethe-Salpeter equation approach
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• Molecular states of $D^{\ast }{D}^{\ast }{\bar{K}}^{\ast }$ nature
• 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 $[ud][\overline{c}\overline{s}]$?
• Method to observe the $J^P=2^{+}$ partner of the $X_0(2866)$ in the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ reaction
• $QQqq\bar{q}$ Quark System, Compact Pentaquark, and Gauge/String Duality
• Tetraquark Masses by using extension of Gursey-Radicati Mass Formula
• Charge asymmetry in decays $B\to D\bar{D}K$
• Discovery of $T_{c\bar{s}0}^a(2900{)}^{0,++}$ implies new charmed-strange pentaquark system
• Double pole structures of $X_1(2900)$ as the $P$-wave ${\bar{D}}^{\ast }{K}^{\ast }$ resonances
• $D_1(2420)$ and its interactions with a kaon: open charm states with strangeness
• Regge Trajectories of Tetraquarks and Pentaquarks with Massive Quarks in the Flux Tube Model
• $D^{(\ast )}{\bar{B}}^{(\ast )}$ dynamics in chiral effective field theory
• Exotic hadrons associated with $b$-quark