e^＋＋e^—→J／ψ→V＋X,X→3P过程的角分布螺旋度形式

Helicity Formalism of the Angular Distributions for the Process e￣+ + e￣-→J/ψ→V + X,X→3P

本文给出了过程ｅ＋＋ｅ－→Ｊ／ψ→Ｖ＋Ｘ，Ｘ、Ｐ１＋Ｐ２＋Ｐ３（Ｖ和Ｐｉ分别代表矢量介子和赝标介子）的角分布螺旋度形式，为确定上述过程中间态Ｘ的自旋和宇称提供了理论公式．

The helicity formalism of the angular distributions for the process e+ + e-→ J/ψ → V + X, X → P1+ P2 + P3(V and stand for vr and psealar meson, respectvely) are given in this paper. It provides the theical formula for determining the spin and parity of the intermediate state X of the above process.