Strong decay probabilities are calculated using the Lorentz contracted wave functions of decay products, determined in the arbitrary dynamical scheme with the instantaneous interaction. It is shown that the decay width acquires an additional factor, defined by the contraction coefficient \(C_m(s)\), which for the two-body equal mass decays is \(C^2_m(s)= 4m^2/s\) , \(s= E^2\). The resulting decay widths are compared to experimental data, where, in particular the \(\rho (770),\rho (1450) \) decay data, require an additional 1/s dependence of the width to fit the data. Important consequences for the dynamics of hadron decays and scattering are shortly discussed.

使用衰变产物的洛伦兹收缩波函数计算强衰变概率，该函数在具有瞬时相互作用的任意动力学方案中确定。结果表明，衰减宽度获得了由收缩系数\（C_m（s）\）定义的附加因子，对于两体相等质量的衰减，该因子为\（C ^ 2_m（s）= 4m ^ 2 / s \），\（s = E ^ 2 \）。将所得的衰减宽度与实验数据进行比较，其中，特别是\（\ rho（770），\ rho（1450）\）衰减数据，需要额外依赖宽度的1 / s来拟合数据。简短讨论了强子衰变和散射动力学的重要后果。