Results 21 to 30 of about 99,149 (216)

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

Vacuum correlators at short distances from lattice QCD

open access: yesJournal of High Energy Physics, 2021
Non-perturbatively computing the hadronic vacuum polarization at large photon virtualities and making contact with perturbation theory enables a precision determination of the electromagnetic coupling at the Z pole, which enters global electroweak fits ...
Marco Cè   +4 more
doaj   +1 more source

Transport coeffcients from pQCD to the Hadron resonance gas at finite BSQ densities [PDF]

open access: yesEPJ Web of Conferences
We calculate the shear viscosity, η, in two limits: perturbative QCD and an excluded-volume hadron resonance gas (HRG), at finite BSQ densities. Using an interpolation framework, we connect these regimes. In addition, we present results for (almost) next-
Danhoni Isabella
doaj   +1 more source

Quantum simulation of colour in perturbative quantum chromodynamics

open access: yesSciPost Physics, 2023
Quantum computers are expected to give major speed-ups for the simulation of quantum systems. In this work, we present quantum gates that simulate the colour part of the interactions of quarks and gluons in perturbative quantum chromodynamics (QCD). As a
Herschel A. Chawdhry, Mathieu Pellen
doaj   +1 more source

Tests of hard and soft QCD with e+e- Annihilation Data [PDF]

open access: yes, 2001
Experimental tests of QCD predictions for event shape distributions combining contributions from hard and soft processes are discussed. The hard processes are predicted by perturbative QCD calculations.
Abbaneo   +19 more
core   +3 more sources

DEVELOPMENTS IN PERTURBATIVE QCD [PDF]

open access: yesLepton and Photon Interactions at High Energies, 2006
A brief review of key recent developments and ongoing projects in perturbative QCD theory, with emphasis on conceptual advances that have the potential for impact on LHC studies. Topics covered include: twistors and new recursive calculational techniques; automation of one-loop predictions; developments concerning NNLO calculations; the status of ...
openaire   +3 more sources

Secondary reggeons in perturbative QCD [PDF]

open access: yesThe European Physical Journal C, 2002
6 pages, 2 ...
Ryskin, M. G., Shuvaev, A. G.
openaire   +2 more sources

Abelian Decomposition and Monopole Condensation in QCD

open access: yesEPJ Web of Conferences, 2018
We demonstrate the monopole condensation in QCD using the Abelian decomposition. The Abelian decomposition decomposes the gluons to the color neutral binding gluons (the neurons and the monopoles) and the colored valence gluons (the chromons), and shows ...
Cho Y.M.
doaj   +1 more source

Progress in perturbative QCD [PDF]

open access: yes, 1997
We briefly summarize some recent theoretical developments in perturbative QCD, emphasizing new ideas which have led to widening the domain of applicability of perturbation theory.
Forte, Stefano
core   +2 more sources

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   +2 more sources

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