Results 21 to 30 of about 12,651 (236)

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

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

THE TRANSITION BETWEEN PERTURBATIVE AND NON-PERTURBATIVE QCD [PDF]

open access: yesQuark-Hadron Duality and the Transition to PQCD, 2006
We study both polarized and unpolarized proton structure functions in the kinematical region of large Bjorken x and four-momentum transfer of few GeV^2. In this region the phenomenon of parton-hadron duality takes place between the smooth continuation of the deep inelastic scattering curve and the average of the nucleon resonances.
Fantoni, A., Liuti, S.
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

Scalar coupling evolution in a non-perturbative QCD resummation scheme

open access: yesPhysics Letters B, 2015
We compute the Standard Model scalar coupling (λ) evolution in a particular QCD resummation scheme, where the QCD coupling becomes infrared finite due to the presence of a dynamically generated gluon mass, leading to the existence of a non-perturbative ...
J.D. Gomez, A.A. Natale
doaj   +1 more source

The transition to perturbative QCD in Compton scattering [PDF]

open access: yesNuclear Physics B, 1995
We investigate the transition to perturbative QCD in Compton processes, by concentrating on the specific reactions $πγ\to πγ$ and pion photoproduction at moderate energy scales. New sum rules for each of the helicities involved in the scattering and the cross section are given, together with a detailed stability analysis.
CORIANO', Claudio, H. N. LI
openaire   +3 more sources

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

BASICS OF QCD PERTURBATION THEORY [PDF]

open access: yesFlavor Physics for the Millennium, 2001
Lectures at the SLAC Summer Institute, August 1996.
openaire   +2 more sources

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