TAUOLA的强子矩阵元:3 π和KKpi通道
Hadronic matrix elements for TAUOLA: 3 pi and KKpi channels
摘要:
我们强调,包括我们的强子矩阵元素在TAUOLA的动机不仅是理论上的。我们还表明,我们的表达式更好地描述了tau到3 pi ALEPH数据,并能够拟合BABAR数据的isovector分量的e^+e^- -> KKpi。该框架的理论基础是QCD的大N_C极限、低能时的手征结构以及QCD对相关形状因子的要求。
英文摘要:
We emphasize that the motivation for including our hadronic matrix elements in TAUOLA is not only theoretical. We also show that our expressions describe better the tau to 3pi ALEPH data and are able to fit BABAR data on the isovector component of e^+e^- -> KKpi. The theoretical foundations of our framework are the large-N_C limit of QCD, the chiral structure exhibited at low energies and the proper asymptotic behaviour, ruled by QCD, that is demanded to the associated form factors.
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