测量phi-omega混合振幅的有限宽度和幺正性修正
高能物理 - 唯象学
2011-07-19 v3 高能物理 - 实验
核理论
摘要
我们证明了在接近phi(1020)峰的能量下，反应e^+e^- --> pi^+ pi^- pi^0中phi-omega干涉的相位可以以几乎独立于phi-omega混合模型的方式计算。目前测得的干涉相位大小（精度仍然较差）与基于omega(782)共振尾部从峰位置延伸到phi质量并假设omega --> rho pi --> 3pi模型的预测一致。计算得到的phi质量处的omega宽度约为200 MeV。
关键词
引用
@article{arxiv.hep-ph/9906520,
title = {Measuring the finite width and unitarity corrections to the phi-omega mixing amplitude},
author = {N. N. Achasov and A. A. Kozhevnikov},
journal= {arXiv preprint arXiv:hep-ph/9906520},
year = {2011}
}
备注
Clarifying remarks and equations are added, fig. 3 is changed in v2, conclusions unchanged. Typeset error in the expression for function Phi_0 in the published version is corrected in v3