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arXiv 1111.6158hep-lathep-ph
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NSPT的大阶静态夸克自能

The static quark self-energy at large orders from NSPT

Gunnar S. Bali, Clemens Bauer, Antonio Pineda

摘要:

利用数值随机微扰理论(NSPT)计算了SU(3)规范理论的静态自能,直到α^{20}阶。一个大的一组不同的晶格体积上的模拟允许有限尺寸效应的仔细治疗。由此产生的无限体积扰动系列的静态自能是在显着的协议与预测的渐近行为的高阶扩展,即与阶乘增长的扰动系数称为renormalon。

英文摘要:

Using Numerical Stochastic Perturbation Theory (NSPT), we calculate the static self-energy of SU(3) gauge theory up to order α^{20}. Simulations on a large set of different lattice volumes allow for a careful treatment of finite size effects. The resulting infinite volume perturbative series of the static self-energy is in remarkable agreement with the predicted asymptotic behaviour of high order expansions, namely with a factorial growth of perturbative coefficients known as renormalon.

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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