On the Nature of X(4260)

Abstract

We study the property of $X(4260)$ resonance by re-analyzing all experimental data available, especially the $e^{+}{e}^{-}\to J/\psi {\pi }^{+}{\pi }^{-},\omega {\chi }_{c0}$ cross section data. The final state interactions of the $\pi \pi$, $K\bar{K}$ couple channel system are also taken into account. A sizable coupling between the $X(4260)$ and $\omega {\chi }_{c0}$ is found. The inclusion of the $\omega {\chi }_{c0}$ data indicates a small value of ${\Gamma }_{e^{+}{e}^{-}}=23.30\pm 3.55$eV.

Refined analysis with new experimental data included. 13 pages

References in corpus (23)

• Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV
• Study of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ and Observation of a Charged Charmonium-like State at Belle
• Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c
• 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
• The Z(4430) and a New Paradigm for Spin Interactions in Tetraquarks
• Hadro-Charmonium
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Excited heavy tetraquarks with hidden charm
• Measurement of the near-threshold $e^{+}{e}^{-}\to D\bar{D}$ cross section using initial-state radiation
• Study of $e^{+}{e}^{-}\to \omega {\chi }_{cJ}$ at center-of-mass energies from 4.21 to 4.42 GeV
• A J^PG=1++ Charged Resonance in the Y(4260) to pi+pi- J/psi Decay?
• Effects of S-wave thresholds
• Y(4260): hadronic molecule versus hadro-charmonium interpretation
• Ambiversion of X(3872)
• Determining the upper limit of Gamma_{ee} for the Y(4260)
• Evidence for resonant structures in e+e- to pi+pi-h_c
• Nonresonant explanation for the Y(4260) structure observed in the $e^{+}{e}^{-}\to J/\psi {\pi }^{+}{\pi }^{-}$ process
• A Dispersive Analysis on the $f_0(600)$ and $f_0(980)$ Resonances in $\gamma \gamma \to {\pi }^{+}{\pi }^{-},{\pi }^0{\pi }^0$ Processes
• Hybrid mesons and auxiliary fields
• Relativistic description of heavy tetraquarks
• 1-- and 0++ Four-Quarks and Molecules from QCD Spectral Sum Rules

Cited by in corpus (39)

• The hidden-charm pentaquark and tetraquark states
• The $XYZ$ states: experimental and theoretical status and perspectives
• Probabilistic interpretation of compositeness relation for resonances
• Comprehensive Amplitude Analysis of $\gamma \gamma \to {\pi }^{+}{\pi }^{-},{\pi }^0{\pi }^0$ and $\overline{K}K$ below 1.5 GeV
• Exploring the threshold behavior and implications on the nature of Y(4260) and $Z_c(3900)$
• The XYZ states revisited
• Cross section measurements of $e^{+}{e}^{-}\to \omega {\chi }_{c0}$ from $\sqrt{s}=$4.178 to 4.278 GeV
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Observation of $e^{+}{e}^{-}\to \omega {\chi }_{c1,2}$ near $\sqrt{s}$ = 4.42 and 4.6 GeV
• The BESIII Physics Programme
• Production of $Y(4260)$ as a hadronic molecule state of $\bar{D}{D}_1+c.c.$ in $e^{+}{e}^{-}$ annihilations
• Some remarks on $X(6900)$
• Pole analysis on the hadron spectroscopy of ${\Lambda }_b\to J/\Psi p{K}^{-}$
• $Z_c(3900)$ as a $D{\bar{D}}^{\ast }$ molecule from the pole counting rule
• Discussions on the Line-shape of $X(4660)$ Resonance
• Nature of the $Y(4260)$: A light-quark perspective
• Resonant parameters of the $Y(4220)$
• Prediction of an exotic state around 4240 MeV with $J^{PC}=1^{-+}$ as C-parity partner of Y(4260) in molecular picture
• Status of quarkonia - like negative and positive parity states in a relativistic confinement scheme
• Pole analysis on the doubly charmed meson in $D^0{D}^0{\pi }^{+}$ mass spectrum
• Cross section line shape of $e^{+}{e}^{-}\to {\chi }_{c0}\omega$ around the $Y(4260)$ mass region
• $X(4260)$ Revisited: A Coupled Channel Perspective
• Generating a resonance-like structure in the reaction $B_c\to B_s\pi \pi$
• Study of the XYZ states at the BESIII
• Probing the nature of $Y(4260)$ and $Z_c(3900)$ in the isospin violating process $Y(4260)\to J/\psi \eta {\pi }^0$
• Recent progress on the study of the charmoniumlike states
• Amplitude analysis of the anomalous decay ${\eta }^{\prime }\to {\pi }^{+}{\pi }^{-}\gamma$
• Observation of $e^{+}{e}^{-}\to \varphi {\chi }_{c1}$ and $\varphi {\chi }_{c2}$ at $\sqrt{s}$=4.600 GeV
• On the nature of X(3960)
• Mass spectrum of $1^{--}$ heavy quarkonium
• Charmonium: Conventional and $XYZ$ States in a Relativistic Screened Potential Model
• On leptonic width of $X(4260)$
• Identifying Hadronic Molecular States with a Neural Network
• Test of semi-local duality in a large $N_C$ framework
• The $X(6900)$ peak could be a molecular state
• Structure around $p\bar{p}$ threshold in $J/\psi$ radiative decays
• Effective-range-expansion study of near threshold heavy-flavor resonances
• Nature of $X(3872)$ from the line shape
• New results on XYZ states from e+e- experiments