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arXiv 0905.0013hep-phhep-th
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由不确定原理导出的QCD耦合参量和夸克真空涨落模型

The QCD Coupling Parameter Derived from the Uncertainty Principle and a Model for Quark Vacuum Fluctuations

David Batchelor

摘要:

强相互作用的大小由$α_s$表征,它是量子色动力学(QCD)中的耦合参数,在标准模型中是一个无法解释的参数。本文从不确定原理给出的真空涨落中夸克-反夸克对的寿命,QCD中$α_s$随能量的变化,以及夸克和反夸克的经典相对论动力学出发,导出了$α_s$的一个候选解释.本文在(2)和(3)的基础上描述了一个重夸克-反夸克真空涨落的半经典模型。本文中的模型预测$α_s(M_{Z^0})$的测量值为0.121,这与最近的测量值在统计不确定性范围内是一致的。

英文摘要:

The magnitude of the strong interaction is characterized by $α_s$, the coupling parameter in Quantum Chromodynamics (QCD), a parameter with an unexplained value in the Standard Model. In this paper, a candidate explanation for $α_s$ is derived from (1) the lifetime of quark-antiquark pairs in vacuum fluctuations given by the Uncertainty Principle, (2) the variation of $α_s$ as a function of energy in QCD, and (3) classical relativistic dynamics of the quarks and antiquarks. A semiclassical model for heavy quark-antiquark vacuum fluctuations is described herein, based on (2) and (3). The model in this paper predicts the measured value of $α_s(M_{Z^0})$ to be 0.121, which is in agreement with recent measurements within statistical uncertainties.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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