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arXiv 1709.04792hep-ph
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介子跃迁形状因子的理论研究

A theoretical study of meson transition form factors

Pablo Sanchez-Puertas

摘要:

在这篇论文中,我们讨论了最轻赝标介子的单、双虚标跃迁形状因子的一个合理的、基于数据的描述。我们得到一个准确的描述,这些在类空和低能量类时区域。现象学的应用是广泛的。其中,我们讨论了η-η混合,赝标衰变为轻子对的罕见过程,以及赝标极对μ子反常磁矩的强子逐光部分的贡献。在所有这些情况下,我们讨论和说明的相关性,采用基于数据的方法,以避免在潜在的系统误差。

英文摘要:

In this thesis we discuss a rational and data-based description of the single- and double-virutal transition form factors of the lightest pseudoscalar mesons. We obtain an accurate description of these in the spacelike and low-energy timelike regions. The phenomenological applications are wide. Among them, we discuss, the eta-eta' mixing, the rare pseudoscalar decays into a lepton pair and the pseudoscalar-pole contribution to the hadronic light-by-light part of the anomalous magnetic moment of the muon. In all these cases we discuss and illustrate the relevance of employing a data-based approach in order not to incur in potential systematic errors.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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