Problems proposed by the present authors for studies at c-tau, b, super-c-tau, and super-b factories are formulated. First, a comparison of the mechanisms of light-scalar-meson production in the process with the mechanisms of light-pseudoscalar-meson production in the process reveals that the transition is negligible in relation to the transition . As for f (0)(980), is not more than 30% of . It is proposed to study light scalar mesons in the semileptonic decays of D (+)(D (-)) , B (+)(B (-)), and . Second, interference phenomena observed in the psi(3770)-resonance region in the reaction are described on the basis of models satisfying the elastic-unitarity requirement. As a model, we propose the model of mixed psi(3770) and psi(2S) resonances. In order to select theoretical models, it is proposed to employ non- decay channels such as e (+) e (-) -> psi(3770) -> gamma chi (c0), J/psi eta, and I center dot eta. Third, branching ratios are calculated for psi(3770) and I'(10580) decays proceeding to light (non- and non-) hadrons owing to the contributions of real and intermediate states. The predictions obtained for these branching ratios lie in the range of 1% a parts per thousand(2) BR a parts per thousand(2) 15%. The lower boundary of this range is ten times higher than the branching ratio for annihilation to three gluons.
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机译：提出了本作者提出的在c-tau，b，super-c-tau和super-b工厂进行研究的问题。首先，将过程中的光标量子介子产生机理与过程中的光伪标量子介子产生机理进行比较，发现该跃迁相对于跃迁而言可忽略不计。 f（0）（980）不大于的30％。建议研究D（+）（D（-）），B（+）（B（-））和。的半轻子衰变中的轻标量介子。其次，在满足弹性-度要求的模型的基础上，描述了在反应的psi（3770）共振区域中观察到的干扰现象。作为模型，我们提出了psi（3770）和psi（2S）混合共振的模型。为了选择理论模型，建议采用非衰减通道，例如e（+）e（-）-> psi（3770）->γchi（c0），J / psi eta和I center dot eta 。第三，计算了psi（3770）的分支比，由于实态和中间态的贡献，I'（10580）逐渐衰减到轻（非和非）强子。对于这些支化比率获得的预测范围为1％a千分之几（2）BR a千分之几（2）15％。该范围的下边界比than灭至三个胶子的分支比率高十倍。
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