标题： 测量phi-omega混合振幅的有限宽度和单位性修正 显示英文标题

标题： Measuring the finite width and unitarity corrections to the phi-omega mixing amplitude

摘要： 在接近phi(1020)峰的能量下，反应e^+e^- -->pi^+ pi^- pi^0中phi-omega干涉的相位可以通过一种几乎与phi-omega混合模型无关的方式进行计算。目前测量的干涉相位幅度仍准确度较差，但与基于假设omega -->rho pi -->3pi模型，将omega(782)共振尾部从峰位置扩展到phi质量的预测结果一致。计算得到的phi质量处的omega宽度约为200 MeV。 显示英文摘要

摘要： It is shown that the phase of phi-omega interference in the reaction e^+e^- -->pi^+ pi^- pi^0 at energies close to the phi(1020) peak can be calculated in a way that is practically independent of the model of phi-omega mixing. The magnitude of the presently measured interference phase, still of poor accuracy, is in agreement with the predictions based on extending the omega(782) resonance tail from the peak position to the phi mass upon assuming the omega -->rho pi -->3pi model. The calculated omega width at the phi mass is about 200 MeV.