Helicity Amplitude Analysis Of J/Psi And Psi(2s) -> Xi(1530)(Xi)Over-Bar(1530)

NUCLEAR PHYSICS B(2019)

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摘要
We perform a helicity amplitude analysis for the processes of e(+)e(-) -> J/psi, psi(2S) -> Xi(1530) (Xi) over bar (1530) -> pi pi Xi(Xi) over bar -> 4 pi Lambda(Lambda) over bar -> 6 pi p (p) over bar. 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. (C) 2019 The Author(s). Published by Elsevier B.V.
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