Charged Exotic Charmonium States

Abstract

In this short review we present and discuss all the experimental information about the charged exotic charmonium states, which have been observed over the last five years. We try to understand their properties such as masses and decay widths with QCD sum rules. We describe this method, show the results and compare them with the experimental data and with other theoretical approaches.

19 pages, 2 figures and 3 tables

References in corpus (15)

• Heavy quarkonium: progress, puzzles, and opportunities
• Can the X(3872) be a 1^{++} four-quark state?
• X(3872) and Other Possible Heavy Molecular States
• Is the X(3872) Production Cross Section at Tevatron Compatible with a Hadron Molecule Interpretation?
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• Estimate for the X(3872) to gamma J/psi decay width
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• QCD sum rules study of the meson Z^+(4430)
• Hidden charm dynamically generated resonances and the $e^{+}{e}^{-}\to J/\psi D\bar{D}$, $J/\psi D{\bar{D}}^{\ast }$ reactions
• $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}{\pi }^0$ decay widths from QCD sum rules
• The meson $Z^{+}(4430)$ as a tetraquark state
• On the nature of the X(3872) from QCD
• Can the ${\pi }^{+}{\chi }_{c1}$ resonance structures be $D^{\ast }{\bar{D}}^{\ast }$ and $D_1\bar{D}$ molecules?
• Width of exotics from QCD sum rules : tetraquarks or molecules?

Cited by in corpus (61)

• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• A non-relativistic model for the $[cc][\bar{c}\bar{c}]$ tetraquark
• Weak decays of heavy hadrons into dynamically generated resonances
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• The $Z_b(10610)$ and $Z_b(10650)$ as axial-vector tetraquark states in the QCD sum rules
• Analysis of the $Z(4430)$ as the first radial excitation of the $Z_c(3900)$
• On $X(3872)$ production in high energy heavy ion collisions
• Analysis of the $Z_c(4200)$ as axial-vector molecule-like state
• Scalar tetraquark state candidates: $X(3915)$, $X(4500)$ and $X(4700)$
• $X(3872)$ production and absorption in a hot hadron gas
• Analysis of the $Z_{cs}(3985)$ as the axialvector tetraquark state
• Tetraquark state candidates: $Y(4140)$, $Y(4274)$ and $X(4350)$
• Analysis of the $X(5568)$ as scalar tetraquark state in the diquark-antidiquark model with QCD sum rules
• A model-independent confirmation of the $Z(4430{)}^{-}$ state
• Testing the molecular nature of ${\mathbf{D}}_{\mathbf{s}0}^{\ast }(2317)$ and ${\mathbf{D}}_0^{\ast }(2400)$ in semileptonic ${\mathbf{B}}_{\mathbf{s}}$ and $\mathbf{B}$ decays
• Analysis of the hidden-charm tetraquark mass spectrum with the QCD sum rules
• Tetraquark Production in Double Parton Scattering
• A QCD sum rule study for a charged bottom-strange scalar meson
• A QCD sum rule calculation of the $X^{\pm }(5568)\to B_s^0{\pi }^{\pm }$ decay width
• Analysis of the radiative decays ${\Sigma }_Q\to {\Lambda }_Q\gamma$ and ${\Xi }_Q^{\prime }\to {\Xi }_Q\gamma$ in light cone sum rules
• Analysis of the triply-heavy baryon states with the QCD sum rules
• Revisit the tetraquark candidates in the $J/\psi J/\psi$ mass spectrum
• Analysis of the vector tetraquark states with P-waves between the diquarks and antidiquarks via the QCD sum rules
• Photoproduction of the charged charmoniumlike $Z_c^{+}(4200)$
• Axialvector tetraquark candidates for the $Z_c(3900)$, $Z_c(4020)$, $Z_c(4430)$, $Z_c(4600)$
• Production of exotic charmonium in $\gamma \gamma$ interactions at hadronic colliders
• $J/\psi$ regeneration in a hadron gas: an update
• Settling the $Z_c(4600)$ in the charged charmonium-like family
• Two-particle contributions and nonlocal effects in the QCD sum rules for the axialvector tetraquark candidate $Z_c(3900)$
• Molecular Interpretation of the Supercharmonium State Z(4475)
• Assignments of the $X(4140)$, $X(4500)$, $X(4630)$ and $X(4685)$ based on the QCD sum rules
• Probing the $X(4350)$ in $\gamma \gamma$ interactions at the LHC
• Recoupling Mechanism for exotic mesons and baryons
• Analysis of the pseudoscalar hidden-charm tetraquark states with the QCD sum rules
• Charmonium production in ultra-peripheral heavy ion collisions with two-photon processes
• The lowest hidden charmed tetraquark state from QCD sum rules
• Weak Decays of Doubly-Heavy Tetraquarks $b\bar{c}q\bar{q}$
• Analysis of the axialvector $B_c$-like tetraquark states with the QCD sum rules
• Understanding close-lying exotic charmonia states within QCD sum rules
• Analysis of the hidden-charm-hidden-strange tetraquark mass spectrum via the QCD sum rules
• Analysis of the vector hidden-charm-hidden-strange tetraquark states with implicit P-waves
• Deciphering charmoniumlike exotic states in photon - hadron interactions at RHIC and LHC energies
• Production and absorption of exotic bottomonium-like states in high energy heavy ion collisions
• Triply-charmed hexaquark states with the QCD sum rules
• Analysis of the possible $D{\bar{D}}_{s0}^{\ast }(2317)$ and $D^{\ast }{\bar{D}}_{s1}^{\ast }(2460)$ molecules with 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
• Masses of tetraquark states in the hidden charm sector above $D-D^{\ast }$ threshold
• $Z_b(10610)$ in a hadronic medium
• The ground states and first radial excitations of the vector tetraquark states with explicit P-waves via the QCD sum rules
• Does vacuum saturation work for the higher dimensional vacuum condensates in the QCD sum rules?
• The strong coupling $g_{XJ/\psi \varphi }$ of $X(4700)\to J/\psi \varphi$ in the light-cone sum rules
• Analysis of the tensor-tensor type scalar tetraquark states with QCD sum rules
• Tests of the Z_c-like Laplace Sum Rule (LSR) results using FESR at NLO
• Advances in QCD sum rule calculations
• Analysis of the vector hidden-charm tetraquark states without explicit P-waves via the QCD sum rules
• X, Y and Z States
• Systematic study of fully heavy-flavored tetraquarks $Q_1{Q}_2{\bar{Q}}_1{\bar{Q}}_2(Q_{1;2}\in \left\{b;c\right\})$: Mass spectra, threshold analysis, and confrontation with LHC data
• Analysis of the $X(4475/4710)$, $X(4500/4700)$, $Z_c(4600)$, $Z_{\bar{c}\bar{s}}(4600)$ and related tetraquark states with the QCD sum rules
• On the description of exotic hadron states within QCD sum rules
• The scalar and pseudoscalar hidden-charm tetraquark states with QCD sum rules