Hybridized Tetraquarks

Abstract

We propose a new interpretation of the neutral and charged X, Z exotic hadron resonances. Hybridized-tetraquarks are neither purely compact tetraquark states nor bound or loosely bound molecules. The latter would require a negative or zero binding energy whose counterpart in h-tetraquarks is a positive quantity. The formation mechanism of this new class of hadrons is inspired by that of Feshbach metastable states in atomic physics. The recent claim of an exotic resonance in the Bs pi+- channel by the D0 collaboration and the negative result presented subsequently by the LHCb collaboration are understood in this scheme, together with a considerable portion of available data on X, Z particles. Considerations on a state with the same quantum numbers as the X(5568) are also made.

6 pages, 1 figure, 1 table. Version published on Phys.Lett. B

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Cited by in corpus (51)

• Hadronic molecules
• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• A review of the open charm and open bottom systems
• Heavy-flavored tetraquark states with the $QQ\bar{Q}\bar{Q}$ configuration
• Diquark Correlations in Hadron Physics: Origin, Impact and Evidence
• Hidden-charm pentaquarks and $P_c$ states
• A Theory of X and Z Multiquark Resonances
• A $bb\bar{b}\bar{b}$ di-bottomonium at the LHC?
• Interpretation of the LHCb Pc(4312) Signal
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• Systematics of fully heavy tetraquarks
• Amplitude analysis and the nature of the Zc(3900)
• Open charm and bottom tetraquarks in an extended relativized quark model
• Interpretation of Axial Resonances in J/psi-phi at LHCb
• Search for the X(5568) state decaying into ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$ in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• Spectrum and rearrangement decays of tetraquark states with four different flavors
• Doubly heavy tetraquarks in an extended chromomagnetic model
• Four-quark structure of Zc(3900), Z(4430) and Xb(5568) states
• Spin partners of the $Z_b(10610)$ and $Z_b(10650)$ revisited
• Spectroscopy of Exotic Hadrons Formed from Dynamical Diquarks
• Nature of the X(5568) : a critical Laplace sum rule analysis at N2LO
• Triply heavy tetraquark states with the $QQ\bar{Q}\bar{q}$ configuration
• Open-flavor charmed/bottom $sq\bar{q}\bar{Q}$ and $qq\bar{q}\bar{Q}$ tetraquark states
• Masses of open charm and bottom tetraquark states in a relativized quark model
• $B_s{\pi }^{+}$ scattering and search for X(5568) with lattice QCD
• Importance of meson-meson and of diquark-antidiquark creation operators for a $\bar{b}\bar{b}ud$ tetraquark
• Is the newly reported $X(5568)$ a $B\bar{K}$ molecular state?
• Zb tetraquark channel from lattice QCD and Born-Oppenheimer approximation
• Tetraquarks in the 1/N expansion and meson-meson resonances
• Application of the QCD light cone sum rule to tetraquarks: the strong vertices $X_b{X}_b\rho$ and $X_c{X}_c\rho$
• Tetraquark systems $\bar{b}b\bar{d}u$ in the static limit and lattice QCD
• Where does the X(5568) structure come from?
• B_c^+- decays into tetraquarks
• Triply heavy tetraquark states
• Large production rate of new $B_s^0{\pi }^{\pm }$ and $D_s^{\pm }{\pi }^{\pm }$ states in high energy multi-production process
• Production of Charmed Tetraquarks from $B_c$ and $B$ decays
• Testing the doubly charged charm-strange tetraquarks
• Recoupling Mechanism for exotic mesons and baryons
• Charmonium spectrum with a Dirac potential model in the momentum space
• Cluster reducibility of multiquark operators
• Triply heavy tetraquark states: masses and other properties
• Study of X(5568) in a unitary coupled-channel approximation of $B\bar{K}$ and $B_s\pi$
• Resonance $X(5568)$ as an exotic axial-vector state
• Properties of $Z_c(3900)$ tetraquark in a cold nuclear matter
• Three body open flavor decays of higher charmonium and bottomonium
• A mixing model for bottomoniumlike $Z_b$ resonances
• Systematics of fully heavy dibaryons
• A short review on the compositeness of the $X(3872)$
• Comment on "Hybridized Tetraquarks"