$Z_c^{+}(3900)$ decay width in QCD sum rules

Abstract

We identify the recently observed charmonium-like structure $Z_c^{\pm }(3900)$ as the charged partner of the X(3872) state. Using standard techniques of QCD sum rules, we evaluate the three-point function and extract the coupling constants of the $Z_{c}J/\psi {\pi }^{+}$ and $Z_c{\eta }_c{\rho }^{+}$ vertices and the corresponding decay widths in these channels. The good agreement with the experimental data gives support to the tetraquark picture of this state.

new section and two more figures added

References in corpus (10)

• Heavy quarkonium: progress, puzzles, and opportunities
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Hadro-Charmonium
• Can the X(3872) be a 1^{++} four-quark state?
• Pion Interactions in the X(3872)
• Line Shapes of the X(3872)
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}{\pi }^0$ decay widths from QCD sum rules
• On the nature of the X(3872) from QCD

Cited by in corpus (88)

• Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Analysis of the $P_c(4380)$ and $P_c(4450)$ as pentaquark states in the diquark model with QCD sum rules
• Analysis of the X(3872), Z_c(3900) and Z_c(3885) as axial-vector tetraquark states with QCD sum rules
• An overview of $XYZ$ new particles
• Possible assignments of the $X(3872)$, $Z_c(3900)$ and $Z_b(10610)$ as axial-vector molecular states
• Observation of $Z_c(3900{)}^0$ in $e^{+}{e}^{-}\to {\pi }^0{\pi }^{0}J/\psi$
• Observation of $e^{+}{e}^{-}\to {\pi }^0{\pi }^0{h}_c$ and a neutral charmoniumlike structure $Z_c(4020{)}^0$
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Prediction of an $I=1$ $D{\bar{D}}^{\ast }$ state and relationship to the claimed $Z_c(3900)$, $Z_c(3885)$
• The $Z_b(10610)$ and $Z_b(10650)$ as axial-vector tetraquark states in the QCD sum rules
• $Z_c(3900)$: what has been really seen?
• Strong decays of molecular states Zc(+) and Zc'(+)
• Analysis of the $Z(4430)$ as the first radial excitation of the $Z_c(3900)$
• Charged Exotic Charmonium States
• Strong $Z_c^{+}(3900)\to J/\psi {\pi }^{+};{\eta }_c{\rho }^{+}$ decays in QCD
• Analysis of the ${\frac{1}{2}}^{\pm }$ pentaquark states in the diquark model with QCD sum rules
• Doubly Heavy Tetraquarks in QCD Sum Rules
• Interpreting $Z_c(3900)$ and $Z_c(4025)/Z_c(4020)$ as charged tetraquark states
• Search for Z_c^+(3900) in the 1^+- channel on the lattice
• Hadronic molecules in B decays
• $Z_{cs}(3985{)}^{-}$ as the $U$-spin partner of $Z_c(3900{)}^{-}$ and implication of other states in the ${\text{SU(3)}}_F$ symmetry and heavy quark symmetry
• Treating $Z_c(3900)$ and $Z(4430)$ as the ground-state and first radially excited tetraquarks
• Analysis of the $Z_c(4200)$ as axial-vector molecule-like state
• Mass spectra of four quark states in hidden charm sector
• QCD sum rule Study of the $d^{\ast }(2380)$
• XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
• Zc(4200)+ decay width as a charmonium-like tetraquark state
• Four-quark structure of Zc(3900), Z(4430) and Xb(5568) states
• Z_c -like spectra from QCD Laplace sum rules at NLO
• The $Z_c$ structures in a coupled-channels model
• The decay width of the $Z_c(3900)$ as an axialvector tetraquark state in solid quark-hadron duality
• Updated Cross Section Measurement of $e^{+}{e}^{-}\to K^{+}{K}^{-}J/\psi$ and $K_S^0{K}_S^{0}J/\psi$ via Initial State Radiation at Belle
• The $Z_{cs}(3985)$ as a threshold effect from the ${\bar{D}}_s^{\ast }D+{\bar{D}}_s{D}^{\ast }$ interaction
• Compositeness of S-wave weakly-bound states from next-to-leading order Weinberg's relations
• Radiative decays of the neutral $Z_c(3900)$
• Selected strong decay modes of Y(4260)
• A QCD sum rule calculation of the $X^{\pm }(5568)\to B_s^0{\pi }^{\pm }$ decay width
• Landau equation and QCD sum rules for the tetraquark molecular states
• Analysis of the strong decay $X(5568)\to B_s^0{\pi }^{+}$ with QCD sum rules
• Observation of a resonant structure near the $D_s^{+}{D}_s^{-}$ threshold in the $B^{+}\to D_s^{+}{D}_s^{-}{K}^{+}$ decay
• Predicition for the decay width of a charged state near the $D_s{\bar{D}}^{\ast }/D_s^{\ast }\bar{D}$ threshold
• $Z_c(3900)$ as a $D{\bar{D}}^{\ast }$ molecule from the pole counting rule
• New charged resonance $Z_c^{-}(4100)$: the spectroscopic parameters and width
• Charged charmoniumlike state $Z_c(3900{)}^{\pm }$ via meson photoproduction
• $Z_c(3900)/Z_c(3885)$ as a virtual state from $\pi J/\psi -{\bar{D}}^{\ast }D$ interaction
• Search for exclusive photoproduction of Z${}_c^{\pm }$(3900) at COMPASS
• A combined analysis of the $Z_c(3900)$ and the $Z_{cs}(3985)$ exotic states
• Magnetic and quadrupole moments of the $Z_c(3900)$
• Systematic study of $Z_c^{+}$ family from quark model's perspective
• Analysis of the hidden-bottom tetraquark mass spectrum with the QCD sum rules
• Radiative and dilepton decays of the hadronic molecule Zc(3900)+
• $Z_c(3900)$: Confronting theory and lattice simulations
• Hidden charmed states and multibody color flux-tube dynamics
• The hidden-charm strong decays of the $Z_c$ states
• Interactions of the doubly charmed state $T_{cc}^{+}$ with a hadronic medium
• Decay behaviors of the fully-bottom and fully-charm tetraquark states
• The magnetic moment of the $Z_c(3900)$ as an axialvector tetraquark state with QCD sum rules
• Triply-charmed dibaryon states or two-baryon scattering states from the QCD sum rules?
• Probing the $XYZ$ states through radiative decays
• Two-particle contributions and nonlocal effects in the QCD sum rules for the axialvector tetraquark candidate $Z_c(3900)$
• Precise determination of the pole position of the exotic $Z_c(3900)$
• Analysis of strong decays of the $Z_c(4600)$ with the QCD sum rules
• Analysis of the mass and width of the $X^{\ast }(3860)$ with QCD sum rules
• Evidence for $Z_c^{\pm }$ decays into the ${\rho }^{\pm }{\eta }_c$ final state
• The decay widths of the $Z_{cs}(3985/4000)$ based on rigorous quark-hadron duality
• The lowest hidden charmed tetraquark state from QCD sum rules
• Understanding the ${\eta }_c\rho$ decay mode of $Z_c^{(\prime )}$ via the triangle loop mechanism
• Molecular states with hidden charm and strange in QCD Sum Rules
• Tetraquark states in the bottom sector and the status of the $Y_b$(10890) state
• Double Exotic States Productions in Pion and Kaon Induced Reactions
• Searching for tetraquark through weak decays of b-baryons
• Analysis of the axialvector $B_c$-like tetraquark states with the QCD sum rules
• Decay properties of the $Z_c(3900)$ through the Fierz rearrangement
• Probing an axial-vector tetraquark $Z_s$ via its semileptonic decay $Z_s\to X(4274)\overline{l}{\nu }_l$
• Analysis of the triply-charmed pentaquark states with QCD sum rules
• Radially excited axial mesons and the enigmatic $Z_c$ and $Z_b$ in a coupled-channel model
• The strong vertices of charmed mesons $D$, $D^{\ast }$ and charmonia $J/\psi$, ${\eta }_c$
• Pion-induced production of the $Z_c(3900)$ off a nuclear target
• Triply-charmed hexaquark states with the QCD sum rules
• Scalar hidden-charm tetraquark states with QCD sum rules
• Analysis of the ${\overline{\Xi }}_{cc}{\Xi }_{cc}$ hexaquark molecular state with the QCD sum rules
• Isospin analysis of $B\to D^{\ast }\bar{D}K$ and the absence of the $Z_c(3900)$ in $B$ decays
• $Z_c$ and $Z_{cs}$ systems with operator mixing at NLO in QCD sum rules
• Interaction of exotic states in a hadronic medium: the $Z_c(3900)$ case
• Photon-induced production of the exotic charged charmonium-like state $Z_c(3900)$ off nuclear targets and its internal structure
• The strong coupling $g_{XJ/\psi \varphi }$ of $X(4700)\to J/\psi \varphi$ in the light-cone sum rules
• X, Y and Z States