Helicity Amplitude Analysis of $J/psi$ and $psi(3686) ightarrowXi(1530)ar{Xi}(1530)$

arXiv: High Energy Physics - Experiment(2018)

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摘要
We perform a helicity amplitude analysis for the processes of $e^+e^-$$rightarrow$$J/psi,psi(3686)rightarrowXi(1530)barXi(1530)rightarrowpipiXibarXirightarrow 4piLambdabarLambdarightarrow 6pi pbar{p}$. The joint angular distribution for these processes are obtained, which allows a proper estimation of the detection efficiency using helicity amplitude information. In addition, the sensitivities of measurement of hyperon asymmetry decay parameters for these processes are discussed.
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