A Moment Analysis for the J/ψHadronic Decay Processes

Abstract：

In this paper the helicity formalism of the angular distributions for processes e ⁺e ^-→J/ ψ→V + X, V→P ₁P ₂or V→P ₁P ₂P ₃and X→P Pare given simultaneously. On the basis of the formalism a moment analysis is made and some relations are obtained which can be used for determining the spin J _xof the boson resonance X and the helicity amplitude ratios of the process/ ψ→V + X.