使用 JADE 数据确定能量为 22 到 44 GeV 的 e⁺e⁻ 双夸克湮灭过程中的 \alpha_s
高能物理 - 实验
2009-10-30 v1
摘要
Data recorded by the JADE experiment at the PETRA e⁺e⁻ collider were used to measure distributions of new event shape observables. The distributions were compared with resummed QCD calulations (O(alpha_s^2)+NLLA), and the strong coupling constant alpha_s was determined at \sqrt{s}= 22, 35 and 44 GeV. The results are in agreement with previous combined results of PETRA but have smaller uncertainties. Together with corresponding data from LEP, the energy dependence of alpha_s is significantly tested and is found to be in good agreement with the QCD expectation.
引用
@article{arxiv.hep-ex/9708037,
title = {Determinations of alpha_s using JADE data of e^+e^- Annihilations at sqrt{s} = 22 to 44 GeV},
author = {P. A. Movilla Fernandez},
journal= {arXiv preprint arXiv:hep-ex/9708037},
year = {2009}
}
备注
6 pages, uses espcrc2.sty (included) and epsfig.sty, LaTeX2e, 8 .eps-files