Partial wave analysis of $ψ'\toγχ_{c0}\to γp K^- \barΛ$ used for searching for baryon resonance

Details Partial wave analysis of $ψ'\toγχ_{c0}\to γp K^- \barΛ$ used for searching for baryon resonance Partial wave analysis of $ψ'\toγχ_{c0}\to γp K^- \barΛ$ used for searching for baryon resonance

2009-11-16

arxiv.org/abs/0911.2998v4

Chin.Phys.C34:1061-1068,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 figure, version in Chin.Phys.C

Scientific paper

10.1088/1674-1137/34/8/005

The abundant $\psi'$ 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 $J/\psi$ decaying to the baryonic final states, $p K^- \bar{\Lambda}$, the evident $\Lambda^*$ and $N^*$ bands have been observed. Similarly, by using the product of $\chi_{cJ}$ from $\psi'$ radiative decay, we may confirm it or find some extra new resonances. $\chi_{c0}$'s data samples will be more than $\chi_{c1,2}$ taking into account the larger branching ratio of $\psi'\to\gamma\chi_{c0}$. Here, we provide explicit partial wave analysis formulae for the very interesting channel $\psi'\to\gamma\chi_{c0}\to \gamma p K^- \bar{\Lambda}$.

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