Results 101 to 110 of about 2,214 (215)

Four-loop anomalous dimensions of scalar-QED theory from operator product expansion

Journal of High Energy Physics
We apply the Operator Product Expansion (OPE) algorithm to the renormalization of scalar-QED theory, with a specific focus on the fixed-charge operator ϕ Q . Within the OPE framework, the anomalous dimension of the ϕ Q operator is perturbatively computed
Rijun Huang, Qingjun Jin, Yi Li
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Higher derivative sigma models

Journal of High Energy Physics
We explore the nature of running couplings in the higher derivative linear and nonlinear sigma models and show that the results in dimensional regularization for the physical running couplings do not always match the values quoted in the literature. Heat
John F. Donoghue, Gabriel Menezes
doaj   +1 more source

Higher covariant derivative regulators and non-multiplicative renormalization [PDF]

, 1995
© 1995 Elsevier Science B.V. F.R.R. was supported by FOM, The Netherlands. The authors also acknowledge partial support from CICyT, Spain.The renormalization algorithm based on regularization methods with two regulators is analyzed by means of explicit
Martin, C.P, Ruiz Ruiz, Fernando, C.P. Martin, F. Ruiz Ruiz   +3 more
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On the seven-loop renormalization of Gross-Neveu model

Journal of High Energy Physics
The presence of an infinite number of marginal four-fermion operators is a key characteristic of the two-dimensional Gross-Neveu model. In this study, we investigate the structure of UV divergences in this model, and by symmetry argument we found that ...
Rijun Huang, Qingjun Jin, Yi Li
doaj   +1 more source

A note on regularization and renormalization

, 2003
We look at sections of a function bundle over the space of linear differential operators. We find that one can construct an isomorphism between a certain quotient bundle and the fourier counterpart of the original bundle defined by formal integration by parts. We also show that differential renormalization is an example of this technique.
openaire   +2 more sources

ALGEBRAIC RENORMALIZATION OF N=2 SUPER YANG-MILLS THEORIES COUPLED TO MATTER

, 1995
We study the algebraic renormalization of N = 2 Supersymmetric Yang–Mills theories coupled to matter. A regularization procedure preserving both the BRS invariance and the supersymmetry is not known yet, therefore it is necessary to adopt the algebraic ...
MAGGIORE, NICOLA, NICOLA MAGGIORE
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A renormalization scheme for semi-regular continued fractions

Monatshefte für Mathematik
Abstract In this article we study a renormalization scheme with which we find all semi-regular continued fractions of a number in a natural way. We define two maps, $$\hat{T}_{slow}$$ T ^
Niels Langeveld, David Ralston
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Remarks on renormalization of black hole entropy

, 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
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Perturbative Renormalization Factors in Domain Wall QCD with Improved Gauge actions [PDF]

AA00773624We evaluate the renormalization factors of the domain-wall fermion system with various improved gauge actions at the one-loop level. The renormalization factors are calculated for the quark wave function, quark mass, bilinear quark operators ...
Aoki, Shinya, Izubuchi, Taku, Kuramashi, Y., Taniguchi, Y.   +3 more
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Infrared and mass regularization in AF field theories ; 1, phi$^{3}_{6}$

, 1979
In the framework of asymptotically free (AF) field theories the authors determine the correction terms in the renormalization group (RG) approach to deep inelastic (DI) scattering and to the Drell-Yan (DY) process.
Humpert, Benedikt, van Neerven, W L
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