标题： 奇异衰变的流形因子$B\to(π,ρ,K,K^*)l^+l^-$在夸克模型中 显示英文标题

标题： Form factors for rare decays $B\to(π,ρ,K,K^*)l^+l^-$ in quark model

摘要： 矢量、轴矢量和张量电流的强子矩阵元，与由夸克跃迁$b\to d,s$引起的单态稀有衰变$B\to(\pi,\rho,K,K^*)\,l^+l^-$相关，使用光锥组分夸克模型的色散公式进行分析。 在衰变区域中的形式因子通过初始和最终介子的光锥波函数表示为相对论双谱表示。 这些形式因子在重夸克到重夸克和重夸克到轻夸克跃迁的极限下被证明具有正确的标度性质，符合QCD。 研究了对夸克模型参数的依赖性。 显示英文摘要

摘要： Hadronic matrix elements of the vector, axial-vector and tensor currents relevant for exclusive rare decays $B\to(\pi,\rho,K,K^*)\,l^+l^-$ induced by the quark transition $b\to d,s$ are analysed using dispersion formulation of the light-cone constituent quark model. The form factors in the decay region are expressed as relativistic double spectral representations through the light-cone wave functions of the initial and final mesons. These form factors are shown to have the correct scaling properties in the limit of heavy-to-heavy and heavy-to-light quark transitions in accordance with QCD. The dependence on the quark-model parameters is studied.