论文标题
部分可观测时空混沌系统的无模型预测
Pion and kaon fragmentation functions at next-to-next-to-leading order
论文作者
论文摘要
我们提出了来自一组单包式电子脉冲歼灭和Lepton-Nucleon半包含的深层深度无弹性散射数据的新确定，对未偏振的带电亲和kaon碎片函数。确定包括对两个过程的临近临时序列QCD校正，并在结合片段化函数的神经网络参数的框架中进行，并与其不确定性的蒙特卡洛表示。我们讨论了确定的质量，尤其是它对高阶校正的依赖性。
We present a new determination of unpolarised charged pion and kaon fragmentation functions from a set of single-inclusive electron-positron annihilation and lepton-nucleon semi-inclusive deep-inelastic scattering data. The determination includes next-to-next-to-leading order QCD corrections to both processes, and is carried out in a framework that combines a neural-network parametrisation of fragmentation functions with a Monte Carlo representation of their uncertainties. We discuss the quality of the determination, in particular its dependence on higher order corrections.
