Gnendiger C, Signer A, Stöckinger D, Broggio A, Cherchiglia A L, Driencourt-Mangin F, Fazio A R, Hiller B, Mastrolia P, Peraro T, Pittau R, Pruna G M, Rodrigo G, Sampaio M, Sborlini G, Bobadilla W J Torres, Tramontano F, Ulrich Y, Visconti A
1Paul Scherrer Institut, 5232 Villigen, PSI Switzerland.
2Physik-Institut, Universität Zürich, 8057 Zürich, Switzerland.
Eur Phys J C Part Fields. 2017;77(7):471. doi: 10.1140/epjc/s10052-017-5023-2. Epub 2017 Jul 14.
We give an introduction to several regularization schemes that deal with ultraviolet and infrared singularities appearing in higher-order computations in quantum field theories. Comparing the computation of simple quantities in the various schemes, we point out similarities and differences between them.
我们介绍了几种正则化方案,这些方案用于处理量子场论高阶计算中出现的紫外和红外奇点。通过比较各种方案中简单量的计算,我们指出了它们之间的异同。