arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.2964hep-ph
收藏

作为胶子等离子体有效场论的磁性杨-米尔斯理论

Magnetic Yang-Mills Theory as an Effective Field Theory of the Gluon Plasma

M. Baker

摘要:

本文提出磁SU(N)纯规范理论作为描述杨-米尔斯理论退禁闭相的长距离非微扰磁响应的有效场论。磁的非阿贝尔拉格朗日量,不像电动力学中有精确的电磁对偶性,是不明确的,但在这里我们认为磁SU(N)杨-米尔斯拉格朗日量作为主导项的长距离有效规范理论的等离子体相。这种处理方法适用于重离子实验中可达到的T_c < T < 3 T_c的温度范围,在去限制相中围绕空间威尔逊圈的磁能分布的形成与在限制相中电通量管的形成是平行的。我们用有效理论计算了空间威尔逊圈和相应的色电流环在等离子体中感应的磁荷密度。这些计算表明,杨-米尔斯理论的非精细相具有磁荷复合物体的紧密堆积流体的性质。

英文摘要:

We propose magnetic SU(N) pure gauge theory as an effective field theory describing the long distance nonperturbative magnetic response of the deconfined phase of Yang-Mills theory. The magnetic non-Abelian Lagrangian, unlike that of electrodynamics where there is exact electromagnetic duality, is not known explicitly, but here we regard the magnetic SU(N) Yang-Mills Lagrangian as the leading term in the long distance effective gauge theory of the plasma phase. In this treatment, which is applicable for a range of temperatures in the interval T_c < T < 3 T_c accessible in heavy ion experiments, formation of the magnetic energy profile around a spatial Wilson loop in the deconfined phase parallels the formation of an electric flux tube in the confined phase. We use the effective theory to calculate spatial Wilson loops and the magnetic charge density induced in the plasma by the corresponding color electric current loops. These calculations suggest that the deconfined phase of Yang-Mills theory has the properties of a closely-packed fluid of magnetically charged composite objects.

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。

↑