强子衰变过程J/ψ→ωπ^+π^-中的多道耦合

Multi-channel Coupling in the Hadronic Decay Process J/ψ→ωπ^+π^-

讨论了强子衰变过程 J/ψ→ωπ^+π^-包含的三个不同中间过程 J/ψ→ωf_2(1270),f_2→π^+π^-和 J/ψ→b_1~±(1235)π~,b_1~±→ωπ~±的耦合问题.这种耦合效应的考虑对于精确测定共振态 f_2和 b_1~±的参数以及这些反应道的螺旋度振幅比是十分重要的.

The coupling problem of the three different intermediate processes J/ψ→ωf_2(1270), f_2→π^+π^- and J/ψ→b_1~±(1235)_π~,b_1~±→ωπ~± included in the hadronic decay process J/ψ→ωπ^+π^- is discussed.The consideration of the coupling effect is very important for measuring the parameters of the resonances f_2 and b_1~± and the helicity amplitude ratios of these reactions precisely.