Search for ηc(2S)hc→pp¯ decays and measurements of the χcJ→pp¯ branching fractions
M. N. Achasov, X. Ai, O. Albayrak, D. Ambrose et autres
Using a sample of $1.06\ifmmode\times\else\texttimes\fi{}{10}^{8}\ensuremath{\psi}(3686)$ events collected with the BESIII detector at BEPCII, the decays ${\ensuremath{\eta}}_{c}(2S)\ensuremath{\rightarrow}p\overline{p}$ and ${h}_{c}\ensuremath{\rightarrow}p\overline{p}$ are searched for, where ${\ensuremath{\eta}}_{c}(2S)$ and ${h}_{c}$ are reconstructed in the decay chains $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\eta}}_{c}(2S)$, ${\ensuremath{\eta}}_{c}(2S)\ensuremath{\rightarrow}p\overline{p}$ and $\ensuremath{\psi}(3686)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{h}_{c}$, ${h}_{c}\ensuremath{\rightarrow}p\overline{p}$, respectively. No significant signals are observed. …
cn, ru, us, it, nl, tr, de, pk (code pays fourni par la source)