Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322717184> ?p ?o ?g. }
- W4322717184 abstract "Using $(10:087pm44)times10^{6}$ $J/psi$ events collected with the BESIII detector, the radiative hyperon decay $Sigmarightarrow pgamma$ is studied at an electron-positron collider experiment for the first time. The absolute branching fraction is measured to be $left(0.996 pm 0.021_{rm stat.}pm 0.018_{rm syst.}right)times 10^{-3}$, which is lower than its world average value by $4.2$ standard deviations. Its decay asymmetry parameter is determined to be $-0.652 pm 0.056_{rm stat.}pm 0.020_{rm syst.}$. The branching fraction and decay asymmetry parameter are the most precise to date, and the accuracies are improved by $78%$ and $34%$, respectively." @default.
- W4322717184 created "2023-03-03" @default.
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