L. L. Jiang

Search for Zc(3900)±→ωπ±

M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak et autres

The decay ${Z}_{c}(3900{)}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\rightarrow}\ensuremath{\omega}{\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$ is searched for using data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies $\sqrt{s}=4.23$ and 4.26 GeV. No significant signal for the ${Z}_{c}(3900{)}^{\ifmmode\pm\else\textpm\fi{}}$ is found, and upper limits at the 90% confidence …

cn, ru, us, de, pk (code pays fourni par la source)

Study of the near-threshold ω ϕ mass enhancement in doubly OZI-suppressed J / ψ → γ ω ϕ decays

M. N. Achasov, O. Albayrak, D. J. Ambrose, F. F. An et autres

A $2.25\ifmmode\times\else\texttimes\fi{}{10}^{8}$ $J/\ensuremath{\psi}$ event sample accumulated with the BESIII detector is used to study the doubly Okubo-Zweig-Iizuka-suppressed decay modes $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\phi}$, $\ensuremath{\omega}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}$, $\ensuremath{\phi}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}$. A strong deviation ($>30\ensuremath{\sigma}$) from three-body $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\omega}\ensuremath{\phi}$ phase space is observed near the $\ensuremath{\omega}\ensuremath{\phi}$ mass threshold that is consistent with …

cn, ru, us, de, it, nl, tr, pk (code pays fourni par la source)

Observation of ηc decay into Σ+Σ¯− and Ξ−Ξ¯+ final states

M. Ablikim, M. N. Achasov, O. Albayrak, D. J. Ambrose et autres

Using a data sample of $2.25\ifmmode\times\else\texttimes\fi{}{10}^{8}$ $J/\ensuremath{\psi}$ events collected with the BESIII detector, we present the first observation of the decays of ${\ensuremath{\eta}}_{c}$ mesons to ${\ensuremath{\Sigma}}^{+}{\overline{\ensuremath{\Sigma}}}^{\ensuremath{-}}$ and ${\ensuremath{\Xi}}^{\ensuremath{-}}{\overline{\ensuremath{\Xi}}}^{+}$. The branching fractions are measured to be $(2.11\ifmmode\pm\else\textpm\fi{}{0.28}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.18}_{\mathrm{syst}}\ifmmode\pm\else\textpm\fi{}{0.50}_{\mathrm{PDG}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ and $(0.89\ifmmode\pm\else\textpm\fi{}{0.16}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.08}_{\mathrm{syst}}\ifmmode\pm\else\textpm\fi{}{0.21}_{\mathrm{PDG}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$ for ${\ensuremath{\eta}}_{c}\ensuremath{\rightarrow}{\ensuremath{\Sigma}}^{+}{\overline{\ensuremath{\Sigma}}}^{\ensuremath{-}}$ and ${\ensuremath{\Xi}}^{\ensuremath{-}}{\overline{\ensuremath{\Xi}}}^{+}$, …

cn, ru, jp, ua (code pays fourni par la source)

’マガジンラック’分子のヘキサカルボニルジコバルト(0)錯体,[(η(2)-C32H20)Co-2(CO)(6)]・CH2Cl2

Akihiro Orita, L. L. Jiang, Ye F, Naomi Imai et autres