Recent progress on the study of the charmoniumlike states

Abstract

In this article, we review the recent experimental studies on the charmoniumlike states, mainly from the e+e- annihilation experiments BESIII, Belle, BaBar, and CLEO-c, and the hadron collider experiment LHCb. We discuss the results on the X(3872), the vector Y states [Y(4008), Y(4660), and those in e+e- to pi+pi-h_c], and the charged charmoniumlike Z_c^- states.

arXiv comment23 pages. Proceedings of the invited talk at the XXVI International Symposium on Lepton Photon Interactions at High Energies, June 2013, San Francisco, USA. The results are not limited to those before June 2013

References in corpus (54)

• Observation of a narrow charmonium-like state in exclusive B+ -> K+ pi+pi- J/psi decays
• Observation of a New Narrow Charmonium State in Exclusive B+-->K+ pi+pi- J/psi Decays
• Heavy quarkonium: progress, puzzles, and opportunities
• The BABAR Detector
• Design and Construction of the BESIII Detector
• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
• Observation of a Broad Structure in the ${\pi }^{+}{\pi }^{-}J/\psi$ Mass Spectrum around 4.26 GeV/$c^2$
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Observation of the Narrow State $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ in $\bar{p}p$ Collisions at $\sqrt{s}=1.96 \TeV$
• Observation of two charged bottomonium-like resonances in Y(5S) decays
• The New Heavy Mesons: A Status Report
• Exotica
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV
• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c
• Determination of the X(3872) meson quantum numbers
• Observation of Two Resonant Structures in e+e- to pi+ pi- psi(2S) via Initial State Radiation at Belle
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Measurement of e^+e^- to pi^+pi^-J/psi Cross Section via Initial State Radiation at Belle
• Observation of the Charged Hadron $Z_c^{\pm }(3900)$ and Evidence for the Neutral $Z_c^0(3900)$ in $e^{+}{e}^{-}\to \pi \pi J/\psi$ at $\sqrt{s}=4170$ MeV
• Observation of a charged (DD*bar)- mass peak in e+e- --> pi+ (DD*bar)- at Ecm=4.26 GeV
• Decoding the riddle of Y(4260) and $Z_c(3900)$
• Observation of a charged charmoniumlike structure in $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^{\pm }{\pi }^{\mp }$ at $\sqrt{s}=4.26$GeV
• The Exotic XYZ Charmonium-like Mesons
• Evidence of a Broad Structure at an Invariant Mass of 4.32 GeV/$c^2$ in the Reaction $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (2S)$ Measured at BaBar
• Observation of two resonance-like structures in the pi+ chi_c1 mass distribution in exclusive B0-bar --> K- pi+ chi_c1 decays
• Analysis of the Quantum Numbers $J^{PC}$ of the X(3872) Particle
• Observation of $e^{+}{e}^{-}\to \gamma X(3872)$ at BESIII
• Confirmation of the Y(4260) Resonance Production in ISR
• Evidence for X(3872) --> psi(2S) gamma in B+/- --> X(3872) K+/- decays, and a study of B --> ccbar gamma K
• Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV
• Experimental constraints on the spin and parity of the Z(4430)+
• Search for the Z(4430)^- at BABAR
• Evidence for the decay $X(3872)\to \psi (2S)\gamma$
• Observation of $X(3872)\to J/\psi \gamma$ and search for $X(3872)\to {\psi }^{\prime }\gamma$ in B decays
• Production of the X(3872) in charmonia radiative decays
• Measurement of the Dipion Mass Spectrum in X(3872) -> J/Psi Pi+ Pi- Decays
• Search for B+ --> X(3872) K+, X(3872) --> J/psi gamma
• $Y(4260)$ as the first $S$-wave open charm vector molecular state?
• Study of the reaction e^{+}e^{-} -->J/psiπ^{+}π^{-} via initial-state radiation at BaBar
• Heavy quarkonium hybrids from Coulomb gauge QCD
• Y(4260) and Y(4360) as mixed hadrocharmonium
• Observation of ψ(4040) and ψ(4160) decay into ηJ/ψ
• The Y(4260) as an omega chi_{c1} molecular state
• Search for the $Z_1(4050{)}^{+}$ and $Z_2(4250{)}^{+}$ states in ${\bar{B}}^0\to {\chi }_{c1}{K}^{-}{\pi }^{+}$ and $B^{+}\to {\chi }_{c1}{K}_S^0{\pi }^{+}$
• Observation of the h_c(1P) using e^+e^- collisions above DDbar threshold
• Evidence for resonant structures in e+e- to pi+pi-h_c
• On the Nature of X(4260)
• Observation of $e^{+}{e}^{-}\to \eta J/\psi$ at center-of-mass energy $sqrts=4.009$ GeV
• A mathematical review on the multiple-solution problem
• Charmonium in lattice QCD and the non-relativistic quark-model
• New Studies of XYZ States at PANDA

Cited by in corpus (17)

• The $XYZ$ states: experimental and theoretical status and perspectives
• Multiquark Resonances
• Heavy-Quark QCD Exotica
• Four-Quark Hadrons: an Updated Review
• Measurement of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\psi (2S)$ via Initial State Radiation at Belle
• Analysis of the $Z_c(4200)$ as axial-vector molecule-like state
• The QCD Dynamics of Tetraquark Production
• Analysis of the mass and width of the $Y(4274)$ as axialvector molecule-like state
• Tetraquark Cusp Effects from Diquark Pair Production
• Tetraquarks in holographic QCD
• The $c\bar{c}$ interaction above threshold and the radiative decay $X(3872)\to J/\psi \gamma$
• A note on the newly observed Y(4220) resonance
• Analysis of the triply-charmed pentaquark states with QCD sum rules
• Exotic Hadron Bound State Production at Hadronic Colliders
• Study of structures and dynamical decay mechanisms for multiquark systems
• Search for $XYZ$ states in ${\rm Y}(1S)$ inclusive decays
• Search for ${\rm Y}(1S,2S)\to Z_c^{+}{Z}_c^{(\prime )-}$ and $e^{+}{e}^{-}\to Z_c^{+}{Z}_c^{(\prime )-}$ at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV