基于e+e-湮没中Hadronic Event Shape 可观测量确定αs(M_Z^2)

P. N. Burrows

基于e+e-湮没中Hadronic Event Shape 可观测量确定αs(M_Z^2)

高能物理 - 实验 2007-05-23 v1

作者: P. N. Burrows

摘要

使用e+e-湮没中Hadronic Event Shape 可观测量的O(alpha_s^2)计算确定αs(M_Z^2)的讨论。来自不同可观测量确定的αs(M_Z^2)值呈现较大散布，可能解释为来自未计算的更高阶贡献效应。讨论了在试图减少此效应方面运用`优化'扰动理论和帕ade近似的应用。

关键词

αs(M_Z^2) Hadronic Event Shape e+e-湮没更高阶修正帕ade 近似

引用

@article{arxiv.hep-ex/9612008,
  title  = {Determination of alpha_s(M_Z^2) from hadronic event shape observables in e+e- annihilation},
  author = {P. N. Burrows},
  journal= {arXiv preprint arXiv:hep-ex/9612008},
  year   = {2007}
}

备注

9 pages and 2 figures in eps format. tar-ed, gzip-ed and uuencode-ed. To appear in proceedings ICHEP96.

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