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arxiv: 1811.11352 · v3 · pith:57XG6D3Nnew · submitted 2018-11-28 · ✦ hep-ex · hep-ph

Helicity Amplitude Analysis of J/psi and psi(2S)rightarrowXi(1530)bar{Xi}(1530)

classification ✦ hep-ex hep-ph
keywords rightarrowamplitudehelicityprocessesanalysisadditionallowsangular
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We perform a helicity amplitude analysis for the processes of $e^+e^-$$\rightarrow$$J/\psi,\psi(2S)\rightarrow\Xi(1530)\bar\Xi(1530)\rightarrow\pi\pi\Xi\bar\Xi\rightarrow\Lambda\bar\Lambda4\pi\rightarrow p\bar{p}6\pi$. 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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