Form-factors investigation of \(\rho ^{\pm }\)–mesons was carried out within the framework of the relativistic quark model, based on point form of Poincaré-invariant quantum mechanics taking into account the internal structure of constituent quarks. It is shown that the parameters of the model obtained from the condition of the agreement of theoretical calculations with experimental data on leptonic decays for light \(\pi ^{\pm }\)— and \(\rho ^{\pm }\)–mesons lead to the results correlating with calculations in models based on light-front and instant forms of dynamics. The proposed scheme for the combined description of lepton transitions of pseudoscalar and vector mesons that is based on point form of dynamics, leads to the results on the magnetic moment of \(\rho ^{\pm }\)–meson correlating with the experimental data and other models.

\(\rho ^{\pm }\) -介子的形状因子研究是在相对论夸克模型的框架内进行的，基于庞加莱不变量子力学的点形式，并考虑了成分夸克的内部结构。结果表明，在理论计算与光的轻子衰变实验数据一致的条件下获得的模型参数\(\pi ^{\pm }\) — 和\(\rho ^{\pm }\ )–介子导致与基于光前和瞬时动力学形式的模型中的计算相关的结果。提出的基于动力学点形式的伪标量和矢量介子的轻子跃迁的组合描述方案导致了\(\rho ^{\pm }\)-介子的磁矩的结果与实验相关数据和其他模型。