arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0909.3411hep-th
收藏

Gribov-Zwanziger拉格朗日量中的单圈MSbar静电势

The one loop MSbar static potential in the Gribov-Zwanziger Lagrangian

J. A. Gracey

摘要:

我们计算静态势的Gribov-Zwanziger拉格朗日函数的Gribov质量,伽玛,在MSbar计划在朗道规范在一个循环。在γ-> 0的极限下恢复了通常的规范无关单圈微扰静势。相比之下,格里博夫-茨万齐格静电势包含了γ ^2/(p^2)^2项。然而,由于r -> infty的补偿行为,作为径向变量r的函数的坐标空间中的线性上升电势不会出现。虽然在短距离的限制,偶极行为是存在的。我们还证明了增强的玻色子局域Zwanziger鬼场的传播时,一圈Gribov间隙方程是满意的。计算了Gribov质量参数的单圈能隙方程的显式形式,证明了重整化群不变有效耦合常数的零动量值与MSbar格式相同.

英文摘要:

We compute the static potential in the Gribov-Zwanziger Lagrangian as a function of the Gribov mass, gamma, in the MSbar scheme in the Landau gauge at one loop. The usual gauge independent one loop perturbative static potential is recovered in the limit as gamma -> 0. By contrast the Gribov-Zwanziger static potential contains the term gamma^2/(p^2)^2. However, the linearly rising potential in coordinate space as a function of the radial variable r does not emerge due to a compensating behaviour as r -> infty. Though in the short distance limit a dipole behaviour is present. We also demonstrate enhancement in the propagator of the bosonic localizing Zwanziger ghost field when the one loop Gribov gap equation is satisfied. The explicit form of the one loop gap equation for the Gribov mass parameter is also computed in the MOM scheme and the zero momentum value of the renormalization group invariant effective coupling constant is shown to be the same value as that in the MSbar scheme.

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。

↑