Partial wave analysis of ψ′→γχc0→γpKΛ used for searching for baryon resonance

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KANG Xian-Wei, LI Hai-Bo, LU Gong-Ru and ZOU Bing-Song. Partial wave analysis of ψ′→γχc0→γpKΛ used for searching for baryon resonance[J]. Chinese Physics C, 2010, 34(8): 1061-1068. doi: 10.1088/1674-1137/34/8/005
KANG Xian-Wei, LI Hai-Bo, LU Gong-Ru and ZOU Bing-Song. Partial wave analysis of ψ′→γχc0→γpKΛ used for searching for baryon resonance[J]. Chinese Physics C, 2010, 34(8): 1061-1068.  doi: 10.1088/1674-1137/34/8/005 shu
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Received: 2009-12-22
Revised: 2010-02-25
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Partial wave analysis of ψ′→γχc0→γpKΛ used for searching for baryon resonance

    Corresponding author: LI Hai-Bo,

Abstract: Abundant ψ′ events have been collected at the Beijing Electron Positron Collider-Ⅱ (BEPCⅡ) that could undoubtedly provide us with a great opportunity to study the more attractive charmonium decays. As has been noticed before, in the process of J/ψ decaying to the baryonic final states, pKΛ, the evident Λ* and N* bands have been observed. Similarly, by using the product of χcJ from ψ′ radiative decay, we may confirm this or find some extra new resonances. χc0's data samples will be more than χc1,2, taking into account the larger branching ratio of ψ′→γχc0. Here, we provide explicit partial wave analysis formulae for the very interesting channel ψ′→γχc0→γpKΛ.

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