Accès ouvert
2023
article
OpenAlex
М. Н. Ачасов, P. Adlarson, M. Albrecht, R. Aliberti et autres
Based on electron positron collision data collected with the BESIII detector operating at the BEPCII storage rings, the differential cross sections of inclusive π^{0} and K_{S}^{0} production as a function of hadron momentum, normalized by the total cross section of the e^{+}e^{-}→hadrons …
cn, ru, se, de, it, pl, mn, us, tr, gb
(code pays fourni par la source)
Accès ouvert
2019
article
OpenAlex
М. Н. Ачасов, S. Ahmed, M. Albrecht, M. Alekseev et autres
Decays ${\ensuremath{\chi}}_{cJ}(J=0,1,2)\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\phi}$ are studied using $(448.1\ifmmode\pm\else\textpm\fi{}2.9)\ifmmode\times\else\texttimes\fi{}{10}^{6}\ensuremath{\psi}(3686)$ events collected with the BESIII detector in 2009 and 2012. In addition to the previously established ${\ensuremath{\chi}}_{c0}\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\phi}$, the first observation of ${\ensuremath{\chi}}_{c1}\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\phi}$ is reported in this paper. The measured product branching fractions are $\mathcal{B}(\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\chi}}_{c0})\ifmmode\times\else\texttimes\fi{}\mathcal{B}({\ensuremath{\chi}}_{c0}\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\phi})=(13.83\ifmmode\pm\else\textpm\fi{}0.70\ifmmode\pm\else\textpm\fi{}1.01)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}$ and $\mathcal{B}(\ensuremath{\psi}(3686)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\chi}}_{c1})\ifmmode\times\else\texttimes\fi{}\mathcal{B}({\ensuremath{\chi}}_{c1}\ensuremath{\rightarrow}\ensuremath{\omega}\ensuremath{\phi})=\phantom{\rule{0ex}{0ex}}(2.67\ifmmode\pm\else\textpm\fi{}0.31\ifmmode\pm\else\textpm\fi{}0.27)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}$, …
cn, ru, de, it, mn, us, tr, nl
(code pays fourni par la source)