Results 121 to 130 of about 1,791 (221)

Non-perturbative renormalization of lattice four-fermion operators without power subtractions

open access: yes, 1999
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

open access: yesJournal of High Energy Physics
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

open access: yes, 2013
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

open access: yesJournal of High Energy Physics
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

open access: yes, 1988
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

open access: yes, 2018
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]

open access: yes, 2005
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

open access: yesJournal of High Energy Physics
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]

open access: yes, 1989
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

open access: yesJournal of High Energy Physics
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

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