论文标题
具有包含QCD过程的精确物理学
Precision physics with inclusive QCD processes
论文作者
论文摘要
可以通过短途理论工具对通过电流电流的包含性生产进行严格分析。相关的可观察物对强相互作用的涉及红外行为不敏感，从而可以非常精确地测试量子染色体动力学。 $σ（e^+e^ - \ to \ mathrm {hadrons}）$的理论预测以及$τ$ Lepton和$ Z $，$ W $和Higgs Bosons的Hadronic衰变宽度达到了令人印象深刻的精度。 $ z $和$τ$ hADRONIC宽度的精确实验测量已使得在两个非常不同的能量尺度上准确确定强耦合，从而提供了对渐近自由的高度显着的实验验证。对这些过程的理论描述及其当前的现象学状态进行了详细讨论。还简要审查了其他来源的$α_s$的最精确确定，并将其与完全包容的结果进行了比较。
The inclusive production of hadrons through electroweak currents can be rigorously analysed with short-distance theoretical tools. The associated observables are insensitive to the involved infrared behaviour of the strong interaction, allowing for very precise tests of Quantum Chromodynamics. The theoretical predictions for $σ(e^+e^-\to\mathrm{hadrons})$ and the hadronic decay widths of the $τ$ lepton and the $Z$, $W$ and Higgs bosons have reached an impressive accuracy of $\mathcal{O}(α_s^4)$. Precise experimental measurements of the $Z$ and $τ$ hadronic widths have made possible the accurate determination of the strong coupling at two very different energy scales, providing a highly significant experimental verification of asymptotic freedom. A detailed discussion of the theoretical description of these processes and their current phenomenological status is presented. The most precise determinations of $α_s$ from other sources are also briefly reviewed and compared with the fully-inclusive results.
