中文摘要：

影响量 chromodynamic (pQCD ) 分析的 perturbative 的一个主要问题是为使 QCD 联合跑的重正常化可伸缩以便为物理 observables 的最大地精确的改正顺序预言被获得的一个方法的缺乏。最大的 Conformality (PMC ) 的原则消除与常规重正常化规模背景过程联系的歧义，产出独立于重正常化计划的选择的预言。联合规模和夸克风味的有效数字的 QCD 在 pQCD 系列被给 order-by-order。PMC 有一个稳固的理论基础，令人满意自我一致性条件的标准重正常化组不变性条件和所有源于重正常化组。在每份订单的 PMC 规模被转移联合经常的 _s 消除非保角的所有的强壮的力量的参数获得 { 在 pQCD 系列的 _i } 条款。{ 没有歧义， _i } 条款从重正常化组方程被决定。跑在每份订单并且在每个阶段空间点联合的正确行为然后能被获得。在 N _C 的 PMC 还原剂 0 Abelian 限制到 Gell-Mann-Low 方法。在这份简短报告，我们总结我们 PMC 的最近的申请的结果到很多个 collider 过程，强调这条途径的概论和适用性。hadronic Z 腐烂的讨论证明由使用 PMC，没有规模歧义，一个人能在每份订单为全部、分开的腐烂宽度完成精确预言。我们也看那一个人是否采用 PMC 在 next-to-next-to-leading 顺序水平决定最高夸克的对提交向后不对称现象，一个人为不对称现象的 Tevatron 大小获得全面、前後一致的 pQCD 解释。这说明 D0 合作为增加 t\(\overline t \) 观察的减少增加的行为不变的质量。在更低的精力，重夸克的尖分布能被用来获得重夸克潜力的一颗直接决心。巨大的夸克和雷普顿的尖分布的讨论也被介绍，包括到电磁的形式因素的二环的修正的 fermionic 部件。这些结果证明 PMC 的申请系统地为 pQCD 预言消除主要理论无常，因此增加的 collider 敏感到远非标准模型所及的可能的新物理?

英文摘要：

A primary problem affecting perturbative quantum chromodynamic （pQCD） analyses is the lack of a method for setting the QCD running-coupling renormalization scale such that maximally precise fixed-order predictions for physical observables are obtained. The Principle of Maximum Conformality （PMC） eliminates the ambiguities associated with the conventional renormalization scale-setting procedure, yielding predictions that are independent of the choice of renormalization scheme. The QCD coupling scales and the effective number of quark flavors are set orderby-order in the pQCD series. The PMC has a solid theoretical foundation, satisfying the standard renormalization group invariance condition and all of the self-consistency conditions derived from the renormalization group. The PMC scales at each order are obtained by shifting the arguments of the strong force coupling constant as to eliminate all non-conformal {βi} terms in the pQCD series. The {βi} terms are determined from renormalization group equations without ambiguity. The correct behavior of the running coupling at each order and at each phase-space point can then be obtained. The PMC reduces in the Nc → 0 Abelian limit to the Gell-Mann-Low method. In this brief report, we summarize the results of our recent application of the PMC to a number of collider processes, emphasizing the generality and applicability of this approach. A discussion of hadronic Z decays shows that, by applying the PMC, one can achieve accurate predictions for the total and separate decay widths at each order without scale ambiguities. We also show that, if one employs the PMC to determine the top-quark pair forward-backward asymmetry at the next-to-next-to-leading order level, one obtains a comprehensive, self-consistent pQCD explanation for the Tevatron measurements of the asymmetry. This accounts for the ＂increasing-decreasing＂ behavior observed by the DO collaboration for increasing tt invariant mass. At lower energies, the angular distributions of heavy quarks can