Results 21 to 30 of about 35,501 (212)
Two-loop results on the renormalization of vacuum expectation values and infrared divergences in the FDH scheme [PDF]
, 2014 Recent progress in the understanding of vacuum expectation values and of infrared divergences in different regularization schemes is reviewed. Vacuum expectation values are gauge and renormalization-scheme dependent quantities.
Gnendiger, Christoph +4 more
core +3 more sources
Quantization of interacting Galilean field theories
Journal of High Energy Physics, 2022 We present the quantum field description of Galilean electrodynamics minimally coupled to massless Galilean fermion in (3 + 1)-dimensions. At classical level, the Lagrangian is obtained as a null reduction of a relativistic theory in one higher dimension.
Kinjal Banerjee, Aditya Sharma
doaj +1 more source
Five-loop anomalous dimensions of ϕ Q operators in a scalar theory with O(N) symmetry
Journal of High Energy Physics, 2022 We compute the complete Q-dependence of anomalous dimensions of traceless symmetric tensor operator ϕ Q in O(N) scalar theory to five-loop. The renormalization factors are extracted from ϕ Q → Q ϕ form factors, and the integrand of form factors are ...
Qingjun Jin, Yi Li
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Regularization and renormalization of gauge fields [PDF]
Nuclear Physics B, 1972 A new regularization and renormalization procedure is presented. It is particularly well suited for the treatment of gauge theories. The method works for theories that were known to be renormalizable as well as for Yang-Mills type theories. Overlapping divergencies are disentangled.
Veltman, M.J.G., Hooft, G. 't
openaire +2 more sources
Three loop renormalization of the SU(N_c) non-abelian Thirring model [PDF]
, 1999 We renormalize to three loops a version of the Thirring model where the fermion fields not only lie in the fundamental representation of a non-abelian colour group SU(N_c) but also depend on the number of flavours, N_f.
Bennett +64 more
core +2 more sources
Dimensional regularization and renormalization of QED [PDF]
Communications in Mathematical Physics, 1990 The tree expansion method of renormalization [see e.g. \textit{G. Gallavotti}, Rev. Mod. Phys. 57, 471-562 (1985)] has been applied to QED by \textit{J. Feldman}, \textit{T. Hurd}, and the authors [QED: A proof of renormalizability. Lect. Notes Phys. 312 (1988)]. The purpose of the present paper is to replace the loop regularization used there, with an
Rosen, Lon, Wright, Jill D.
openaire +2 more sources
Pairing renormalization and regularization within the local density approximation [PDF]
, 2006 We discuss methods used in mean-field theories to treat pairing correlations within the local density approximation. Pairing renormalization and regularization procedures are compared in spherical and deformed nuclei.
J. Dobaczewski +6 more
core +1 more source
Dimensional regularization vs methods in fixed dimension with and without γ 5
Journal of High Energy Physics, 2018 We study the Lorentz and Dirac algebra, including the antisymmetric ϵ tensor and the γ 5 matrix, in implicit gauge-invariant regularization/renormalization methods defined in fixed integer dimensions.
A. M. Bruque +2 more
doaj +1 more source
General scalar renormalisation group equations at three-loop order
Journal of High Energy Physics, 2020 For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the MS ¯ $$ \overline{\mathrm{MS}} $$ scheme. Utilising
Tom Steudtner
doaj +1 more source
On a realization of {β}-expansion in QCD
Journal of High Energy Physics, 2017 We suggest a simple algebraic approach to fix the elements of the {β}-expansion for renormalization group invariant quantities, which uses additional degrees of freedom.
S.V. Mikhailov
doaj +1 more source