To $d$, or not to $d$: Recent developments and comparisons of regularization schemes
C. Gnendiger, A. Signer, D. St\"ockinger, A. Broggio, A. L., Cherchiglia, F. Driencourt-Mangin, A. R. Fazio, B. Hiller, P. Mastrolia, T., Peraro, R. Pittau, G. M. Pruna, G. Rodrigo, M. Sampaio, G. Sborlini, W. J., Torres Bobadilla, F. Tramontano, Y. Ulrich, A. Visconti
TL;DR
This paper reviews recent advances in regularization schemes used in quantum field theory to handle singularities, comparing their methodologies and highlighting key similarities and differences.
Contribution
It provides a comparative overview of various regularization schemes, emphasizing recent developments and their application in higher-order quantum field theory calculations.
Findings
Comparison of regularization schemes reveals their similarities and differences.
Recent developments improve handling of ultraviolet and infrared singularities.
Guidance for choosing appropriate regularization methods in complex computations.
Abstract
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.
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