2026
article
OpenAlex
Pei Guo, Qiyu Liu, Jin Li, Songze Li et autres
cn
(code pays fourni par la source)
Accès ouvert
2013
article
OpenAlex
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)
Accès ouvert
2013
article
OpenAlex
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)