Results 71 to 80 of about 531,410 (302)

Experimental Tests Of Perturbative QCD [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 1989
The main experimental results to test quantum chromodynamics are reviewed. A wide variety of observables related to hard processes are correctly predicted by the theory, thus it is fair to say that the experimental support of QCD is quite solid and quantitative.(AIP)
openaire   +3 more sources

Handbook of perturbative QCD [PDF]

open access: yesReviews of Modern Physics, 1995
The elements, theoretical basis, and experimental status of perturbative quantum chromodynamics are presented. Relevant field-theoretic methods are introduced at a nonspecialist level, along with a review of the basic ideas and methods of the parton model.
Raymond Brock   +16 more
openaire   +2 more sources

The two-loop perturbative correction to the (g − 2) μ HLbL at short distances

open access: yesJournal of High Energy Physics, 2021
The short-distance behaviour of the hadronic light-by-light (HLbL) contribution to (g − 2) μ has recently been studied by means of an operator product expansion in a background electromagnetic field.
Johan Bijnens   +3 more
doaj   +1 more source

Perturbative QCD

open access: yesAIP Conference Proceedings, 1982
The discussion includes general properties of QCD perturbation expansion, onia decays, Drell-Yan, higher twist, and some miscellaneous comments about .cap alpha./sub s/. 45 references. (GHT)
openaire   +3 more sources

High energy amplitude as an admixture of "soft" and "hard" Pomerons

open access: yes, 2003
In this paper an attempt is made to find an interface of the perturbative BFKL Pomeron with the non-perturbative Pomeron originating from non-perturbative QCD phenomena such as QCD instantons and/or scale anomaly.
Armesto   +53 more
core   +1 more source

Nonperturbative QCD, gauge-fixing, Gribov copies, and the lattice [PDF]

open access: yes, 2003
Perturbative QCD uses the Faddeev-Popov gauge-fixing procedure, which leads to ghosts and the local BRST invariance of the gauge-fixed perturbative QCD action.
Williams, Anthony G.
core   +2 more sources

RECENT DEVELOPMENTS IN PERTURBATIVE QCD [PDF]

open access: yesDeep Inelastic Scattering DIS 2006, 2007
A brief overview of some recently active topics in perturbative QCD, including: string-inspired recursion techniques at tree level; recursion approaches and automation of standard techniques for 1-loop calculations; the status of NNLO jet calculations; and non-trivial structures that appear in higher-order calculations.
openaire   +4 more sources

Connecting the hadron mass scale to the fundamental mass scale of quantum chromodynamics

open access: yesPhysics Letters B, 2015
Establishing an explicit connection between the long distance physics of confinement and the dynamical interactions of quarks and gluons at short distances has been a long-sought goal of quantum chromodynamics.
A. Deur, S.J. Brodsky, G.F. de Teramond
doaj   +1 more source

Setting the renormalization scale in perturbative QCD : Comparisons of the principle of maximum conformality with the sequential extended Brodsky-Lepage-Mackenzie approach [PDF]

open access: yes, 2015
A key problem in making precise perturbative QCD (pQCD) predictions is how to set the renormalization scale of the running coupling unambiguously at each finite order.
Hong-Hao Ma   +4 more
semanticscholar   +1 more source

AN ANALYTIC APPROACH TO PERTURBATIVE QCD [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
The two-loop invariant (running) coupling of QCD is written in terms of the Lambert W function. The analyticity structure of the coupling in the complex Q2-plane is established. The corresponding analytic coupling is reconstructed via a dispersion relation.
openaire   +3 more sources

Home - About - Disclaimer - Privacy