Study of $e^{+}{e}^{-}\to \omega X(3872)$ and $\gamma X(3872)$ from 4.66 to 4.95 GeV

Abstract

Using data samples with an integrated luminosity of $4.5{\text{fb}}^{-1}$ collected by the BESIII detector at center-of-mass energies ranging from 4.66 to 4.95 GeV, we study the processes of $e^{+}{e}^{-}\to \omega X(3872)$ and $e^{+}{e}^{-}\to \gamma X(3872)$. With the $e^{+}{e}^{-}\to \omega X(3872)$ process, the branching fraction ratio $R\equiv \frac{\mathcal{B}(X(3872)\to \gamma J/\psi )}{\mathcal{B}(X(3872)\to {\pi }^{+}{\pi }^{-}J/\psi )}$ is measured to be $0.38\pm 0.20_{\text{stat.}}\pm 0.01_{\text{syst.}}$ ($R<0.83$ at 90\% confidence level). In addition, we measure the ratio of the average cross section of $e^{+}{e}^{-}\to \omega X(3872)$ to $e^{+}{e}^{-}\to \omega {\chi }_{c1}(\omega {\chi }_{c2})$ to be ${\sigma }_{\omega X(3872)}/{\sigma }_{\omega {\chi }_{c1}}({\sigma }_{\omega X(3872)}/{\sigma }_{\omega {\chi }_{c2}})=5.2\pm 1.0_{\text{stat.}}\pm 1.9_{\text{syst.}}(5.5\pm 1.1_{\text{stat.}}\pm 2.4_{\text{syst.}})$. Finally, we search for the process of $e^{+}{e}^{-}\to \gamma X(3872)$, and no obvious signal is observed. The upper limit on the ratio of the average cross section of $e^{+}{e}^{-}\to \gamma X(3872)$ to $e^{+}{e}^{-}\to \omega X(3872)$ is set as ${\sigma }_{\gamma X(3872)}/{\sigma }_{\omega X(3872)}<0.23$ at 90\% confidence level.

arXiv comment19 pages, 10 figures

References in corpus (57)

• 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
• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Design and Construction of the BESIII Detector
• The Precision Monte Carlo Event Generator KK For Two-Fermion Final States In e+e- Collisions
• Coherent Exclusive Exponentiation For Precision Monte Carlo Calculations
• Higher Charmonia
• Diquark-Antidiquarks with Hidden or Open Charm and the Nature of X(3872)
• Future Physics Programme of BESIII
• Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV
• Short Range Structure in the X(3872)
• Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
• Higher Charmonia and X,Y,Z states with Screened Potential
• The X(3872) boson: Molecule or charmonium
• Observation of $e^{+}{e}^{-}\to \gamma X(3872)$ at BESIII
• Evidence for the decay X(3872) --> J/psi omega
• Search for hadronic transition ${\chi }_{cJ}\to {\eta }_c{\pi }^{+}{\pi }^{-}$ and observation of ${\chi }_{cJ}\to K\bar{K}\pi \pi \pi$
• Diagnostic Decays of the X(3872)
• Bounds on the width, mass difference and other properties of X(3872) --> pi+pi-J/psi decays
• New states above charm threshold
• Branching fraction measurements of χ_{c0} and χ_{c2} to π^0π^0 and ηη
• Study of Resonances in Exclusive B Decays to Dbar(*)D(*)K
• Measurement of the X(3872) production cross section via decays to J/psi pi pi in pp collisions at sqrt(s) = 7 TeV
• Observation of $X(3872)\to J/\psi \gamma$ and search for $X(3872)\to {\psi }^{\prime }\gamma$ in B decays
• Charmonium spectrum and their electromagnetic transitions with higher multipole contributions
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• Quantum numbers of the $X(3872)$ state and orbital angular momentum in its ${\rho }^{0}J\psi$ decay
• Quark structure of the $X(3872)$ and ${\chi }_b(3P)$ resonances
• Search for a Charged Partner of the X(3872) in the B Meson Decay B --> X- K, X- --> J/psi pi- pi0
• Study of $e^{+}{e}^{-}\to \gamma \omega J/\psi$ and Observation of $X(3872)\to \omega J/\psi$
• What can radiative decays of the X(3872) teach us about its nature?
• Measurements of $\psi (2S)$ and $X(3872)\to J/\psi {\pi }^{+}{\pi }^{-}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Luminosities and energies of $e^{+}{e}^{-}$ collision data taken between $\sqrt{s}$=4.612 GeV and 4.946 GeV at BESIII
• One-photon decay of the tetraquark state $X(3872)\to \gamma +J/\psi$ in a relativistic constituent quark model with infrared confinement
• X(3872) is not a true molecule
• Radiative Decays X(3872) -> psi(2S)+gamma and psi(4040) -> X(3872)+gamma in Effective Field Theory
• Radiative E1 decays of X(3872)
• Study of the ${\psi }_2(3823)$ and ${\chi }_{c1}(3872)$ states in $B^{+}\to \left(J\psi {\pi }^{+}{\pi }^{-}\right)K^{+}$ decays
• Observation of multiplicity-dependent prompt ${\chi }_{c1}(3872)$ and $\psi (2S)$ production in $pp$ collisions
• Radiative transitions of heavy quarkonium states
• Study of open-charm decays and radiative transitions of the X(3872)
• Observation of the decay $X(3872)\to {\pi }^0{\chi }_{c1}(1P)$
• $B\to {\chi }_{c1}(1P,2P)K$ decays in QCD factorization and X(3872)
• The ratio of decay widths of X(3872) to ${\psi }^{\prime }\gamma$ and $J/\psi \gamma$ as a test of the X(3872) dynamical structure
• Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
• What do the radiative decays of X(3872) tell us
• Study of $B_s^0\to J/\psi {\pi }^{+}{\pi }^{-}{K}^{+}{K}^{-}$ decays
• Charm-meson Triangle Singularity in $e^{+}{e}^{-}$ Annihilation into $D^{\ast 0}{\bar{D}}^0+\gamma$
• Unquenched quark-model calculation of X(3872) electromagnetic decays
• Measurement of ${\chi }_{c1}(3872)$ production in proton-proton collisions at $\sqrt{s}=8$ and $13$ TeV
• The $c\bar{c}$ interaction above threshold and the radiative decay $X(3872)\to J/\psi \gamma$
• ${\alpha }_s{v}^2$ corrections to ${\eta }_c$ and ${\chi }_{cJ}$ production recoiled with a photon at $e^{+}{e}^{-}$ colliders
• Observation of a New $X(3872)$ Production Process $e^{+}{e}^{-}\to \omega X(3872)$
• Observation of the B${}_{\mathrm{s}}^0$ $\to$ X(3872)$\varphi$ decay
• Radiative decay of the $X(3872)$ as a mixed molecule-charmonium state in effective field theory
• Studies of $X(3872)$ and $\psi (2S)$ production in $p\bar{p}$ collisions at 1.96 TeV

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• Search for the $e^{+}{e}^{-}\to \varphi {\chi }_{c1}(3872)$ process at BESIII