Results 11 to 20 of about 35,501 (212)

Implicit Regularization and Renormalization of QCD [PDF]

International Journal of Theoretical Physics, 2006
We apply the Implicit Regularization Technique (IR) in a non-abelian gauge theory. We show that IR preserves gauge symmetry as encoded in relations between the renormalizations constants required by the Slavnov-Taylor identities at the one loop level of QCD.
Sampaio, Marcos, Scarpelli, A. P. Baêta, Ottoni, J. E., Nemes, M. C.   +3 more
openaire   +4 more sources

SYMMETRY-PRESERVING LOOP REGULARIZATION AND RENORMALIZATION OF QFTs [PDF]

Modern Physics Letters A, 2004
A new symmetry-preserving loop regularization method proposed in Ref. 1 is further investigated. It is found that its prescription can be understood by introducing a regulating distribution function to the proper-time formalism of irreducible loop integrals.
Dai Y. B., Gherghetta T., Heisenberg W., Martin C. P., Wu Y. L., Wu Y. L., YUE-LIANG WU   +6 more
openaire   +4 more sources

Regularization and Renormalization of Chern-Simons Theory [PDF]

, 1993
We analyze some features of the perturbative quantization of Chern-Simons theory (CST) in the Landau gauge. In this gauge the theory is known to be perturbatively finite. We consider the renormalization scheme in which the renormalized parameter $k$ equals the bare or classical one and show that it constitutes a natural parametrization for the quantum ...
Ruiz Ruiz, Fernando, Giavarini, G., Martin, C. P.   +2 more
openaire   +7 more sources

Higher logarithms and ε-poles for the MS-like renormalization prescriptions

Journal of High Energy Physics, 2023
We consider a version of dimensional regularization (reduction) in which the dimensionful regularization parameter Λ is in general different from the renormalization scale μ.
N. P. Meshcheriakov, V. V. Shatalova, K. V. Stepanyantz   +2 more
doaj   +1 more source

Leading all-loop quantum contribution to the effective potential in general scalar field theory

Journal of High Energy Physics, 2023
The RG equation for the effective potential in the leading log (LL) approximation is constructed which is valid for an arbitrary scalar field theory in 4 dimensions.
D. I. Kazakov, R. M. Iakhibbaev, D. M. Tolkachev   +2 more
doaj   +1 more source

Towards general scalar-Yukawa renormalisation group equations at three-loop order

Journal of High Energy Physics, 2021
For arbitrary four-dimensional quantum field theories with scalars and fermions, renormalisation group equations in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme are investigated at three-loop order in perturbation theory.
Tom Steudtner
doaj   +1 more source

Self-renormalization of quasi-light-front correlators on the lattice

Nuclear Physics B, 2021
In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences in the self-energy of Wilson lines.
Yi-Kai Huo, Yushan Su, Long-Cheng Gui, Xiangdong Ji, Yuan-Yuan Li, Yizhuang Liu, Andreas Schäfer, Maximilian Schlemmer, Peng Sun, Wei Wang, Yi-Bo Yang, Jian-Hui Zhang, Kuan Zhang   +12 more
doaj   +1 more source

Asymptotic freedom and higher derivative gauge theories

Journal of High Energy Physics, 2021
The ultraviolet completion of gauge theories by higher derivative terms can dramatically change their behavior at high energies. The requirement of asymptotic freedom imposes very stringent constraints that are only satisfied by a small family of higher ...
M. Asorey, F. Falceto, L. Rachwał
doaj   +1 more source

Two-Loop Analysis of Non-abelian Chern-Simons Theory [PDF]

, 1992
Perturbative renormalization of a non-Abelian Chern-Simons gauge theory is examined. It is demonstrated by explicit calculation that, in the pure Chern-Simons theory, the beta-function for the coefficient of the Chern-Simons term vanishes to three loop ...
A. Fetter, A. J. Niemi, A. M. Polyakov, A. N. Redlich, A. P. Balachandran, A. P. Balachandran, A. Polyakov, A. Ruiz, B. Blok, B. Blok, B. Schroer, D. H. Lee, E. Guadagnini, E. S. Fradkin, E. Witten, F. Wilczek, F. Wilczek, G. Goldin, G. Moore, G. Moore, G. Moore, G. Semenoff, G. Semenoff, G. Semenoff, G. Semenoff, G. W. Semenoff, Gordon W. Semenoff, I. Dzyaloshingsky, J. C. Taylor, J. Dunne, J. Frohlich, J. Frohlich, J. J. Shonfeld, J. Leinaas, L. Alvarez-Gaume, L. Schulman, M. Bernstein, M. Laidlaw, M. Stone, M. Stone, N. Read, R. Jackiw, R. Laughlin, R. Pisarski, S. Coleman, S. Deser, S. Deser, S. Girvin, S. Girvin, S. J. Gates, S. Weinberg, S. Zhang, V. Kalmeyer, V. P. Spiridonov, V. P. Spridonov, W. Chen, W. Chen, W. Chen, W. Chen, W. Siegel, W. Siegel, Wei Chen, X. G. Wen, X. G. Wen, X. G. Wen, X. G. Wen, Y. H. Chen, Y. Kao, Y.-S. Wu, Y.-S. Wu, Y.-S. Wu, Yong-Shi Wu, Z. F. Ezawa   +72 more
core   +2 more sources

Universality in the Exact Renormalization Group: Comparison to Perturbation Theory

Universe, 2023
Various formulations of the exact renormalization group can be compared in the perturbative domain, in which we have reliable expressions for regularization-independent (universal) quantities.
José Gaite
doaj   +1 more source