arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1111.6078hep-phhep-th
收藏

库仑规范中的首阶红外量子色动力学

Leading order infrared quantum chromodynamics in Coulomb gauge

Peter Watson, Hugo Reinhardt

摘要:

本文给出了库仑规范下量子色动力学Dyson-Schwinger方程的一阶截断格式。截断是基于在动作中发生的库仑核的Ancillary。结果在领先的循环顺序和在红外讨论杨米尔斯和夸克部门。结果表明,所得到的静态胶子和夸克传播子方程与正则哈密顿方法的准粒子近似一致。此外,建立了与重夸克极限的联系。方程进行了数值分析,可以看出,在胶子和夸克部门,一个非平凡的动力学红外质量标度出现。

英文摘要:

A truncation scheme for the Dyson-Schwinger equations of quantum chromodynamics in Coulomb gauge within the first order formalism is presented. The truncation is based on an Ansatz for the Coulomb kernel occurring in the action. Results at leading loop order and in the infrared are discussed for both the Yang-Mills and quark sectors. It is found that the resulting equations for the static gluon and quark propagators agree with those derived in a quasi-particle approximation to the canonical Hamiltonian approach. Moreover, a connection to the heavy quark limit is established. The equations are analyzed numerically and it is seen that in both the gluonic and quark sectors, a nontrivial dynamical infrared mass scale emerges.

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。

↑