Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany.
Phys Rev Lett. 2012 Jun 15;108(24):242002. doi: 10.1103/PhysRevLett.108.242002. Epub 2012 Jun 12.
We compute the static self-energy of SU(3) gauge theory in four spacetime dimensions to order α20 in the strong coupling constant α. We employ lattice regularization to enable a numerical simulation within the framework of stochastic perturbation theory. We find perfect agreement with the factorial growth of high order coefficients predicted by the conjectured renormalon picture based on the operator product expansion.
我们计算了 SU(3)规范理论在四维时空中的静态自能，其强耦合常数α的精度为α20。我们采用格点正则化，以便在随机微扰理论框架内进行数值模拟。我们发现与基于算子乘积展开的推测重整化子图像所预测的高阶系数的阶乘增长完全一致。
