Non-perturbative renormalization of lattice four-fermion operators without power subtractions
A general nonperturbative analysis of the renormalization properties of Delta I = 3/2 four-fermion operators in the framework of lattice regularization with Wilson fermions is presented.
Talevi, Mauro +8 more
core +1 more source
Renormalization-group equations of the LEFT at two loops: dimension-six operators
We present the third part of a systematic calculation of the two-loop anomalous dimensions for the low-energy effective field theory below the electroweak scale (LEFT): insertions of dimension-six operators that conserve baryon number.
Luca Naterop, Peter Stoffer
doaj +1 more source
Geometrically Relating Momentum Cut-Off and Dimensional Regularization
The β function for a scalar field theory describes the dependence of the coupling constant on the renormalization mass scale. This dependence is affected by the choice of regularization scheme.
Agarwala, Susama
core
Two-loop anomalous dimensions in the LEFT: dimension-six four-fermion operators in NDR
We derive the complete set of two-loop anomalous dimensions describing the mixing of four-fermion operators in the Low Energy Effective Field Theory (LEFT).
Jason Aebischer +3 more
doaj +1 more source
Renormalization of stochastically quantized field theories
We discuss the renormalizability of stochastically quantized φ4 theory in four dimensions using the operator formalism of the Langevin equation developed by Namiki and Yamanaka.
Srinivasan, V. +2 more
core +1 more source
Remarks on renormalization of black hole entropy
We elaborate the renormalization process of entropy of a nonextremal and an extremal Reissner-Nordström black hole by using the Pauli-Villars regularization method, in which the regulator fields obey either the Bose-Einstein or Fermi-Dirac distribution ...
김성구
core
Scaling of nonperturbative renormalization of composite operators with overlap fermions [PDF]
Copyright © 2005. All rights reserved. Printed in U.S.A. Submitted to Cornell University’s online archive www.arXiv.org in 2005 by Jianbo Zhang. Post-print sourced from www.arxiv.org.We compute non-perturbatively the renormalization constants of ...
Leinweber, D., Williams, A., Zhang, J.
core
Soft factorisation and exponentiation from Schwinger-space geometry
Infrared divergences in Quantum Field Theory govern the low-energy dynamics of many physical theories, and their understanding is a crucial ingredient in predicting the outcomes of collider experiments.
Carolina Figueiredo +2 more
doaj +1 more source
Operator Regularization And Renormalization Theory [PDF]
In the past few years a new method of regularization, called operator regularization (o.r.), has been developed to regulate formal divergences that arise in quantum field theory. This technique is characterized by the fact that no divergent quantities ever arise once the technique is applied, even after the regulating parameter approaches its limiting ...
openaire
Non-perturbative renormalisation and improvement of non-singlet tensor currents in N f = 3 QCD
Hadronic matrix elements involving tensor currents play an important rôle in decays that allow to probe the consistency of the Standard Model via precision lattice QCD calculations. The non-singlet tensor current is a scale-dependent (anomalous) quantity.
Leonardo Chimirri +6 more
doaj +1 more source

