English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Using a sample of $1.06\times10^{8}~\psi(3686)$ events collected with theBESIII detector at BEPCII, the decays $\eta_{c}(2S)\to p\bar{p}$ and $h_{c}\top\bar{p}$ are searched for, where $\eta_c(2S)$ and $h_c$ are reconstructed inthe decay chains $\psi(3686)\to\gamma\eta_{c}(2S)$, $\eta_{c}(2S)\to p\bar{p}$and $\psi(3686)\to\pi^{0}h_{c}$, $h_{c}\to p\bar{p}$, respectively. Nosignificant signals are observed. The upper limits of the product branchingfractions are determined to be$\mathcal{B}(\psi(3686)\to\gamma\eta_c(2S))\times\mathcal{B}(\eta_{c}(2S)\top\bar{p})<1.4\times10^{-6}$ and$\mathcal{B}(\psi(3686)\to\pi^0h_c)\times\mathcal{B}(h_{c}\top\bar{p})<1.3\times10^{-7}$ at the 90% C.L.. The branching fractions for$\chi_{cJ}\to p\bar{p}$ $(J=0,~1,~2)$ are also measured to be$(24.5\pm0.8\pm1.3,~8.6\pm0.5\pm0.5,~8.4\pm0.5\pm0.5)\times10^{-5}$, which arethe world's most precise measurements.

Search for the $\eta_c(2S)/h_c\to p\bar{p}$ decays and measurements of the $\chi_{cJ}\to p\bar{p}$ branching fractions