Results 51 to 60 of about 99,149 (216)

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

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

Describing the Global Gravity Field of Mars With Lithospheric Flexure and Deep Mantle Flow

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract The volcanic complex Tharsis Region on Mars is known for its numerous volcanoes on top of the crust, elevated topography (doming), and a long‐wavelength gravity anomaly correlated with the region. Flexural modeling of the lithosphere has commonly been used to understand the relationship between observed topography, crustal structure, and ...
Bart Root   +3 more
wiley   +1 more source

The Non-perturbative Effect on $R=\sigma_L /\sigma_T$ from QCD Vacuum

open access: yes, 1998
We investigate the non-perturbative effects on the ratio $R=\sigma_L /\sigma_T$ in lepton-nucleon deep inelastic scattering by taking into account the lowest dimensional condensate contributions from the QCD vacuum. By combining conventional perturbative
Li, Guang-Lie   +2 more
core   +2 more sources

Where do perturbative and non-perturbative QCD meet? [PDF]

open access: yes, 2001
We computed the static potential and Wilson loops to $O(\alpha^2)$ in perturbation theory for different lattice quark and gluon actions. In general, we find short distance lattice data to be well described by ``boosted perturbation theory''.
Bali   +5 more
core   +3 more sources

Quantum GraviElectro Dynamics

open access: yesAnnalen der Physik, Volume 538, Issue 1, January 2026.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

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

Conformal window and Landau singularities [PDF]

open access: yes, 2001
A physical characterization of Landau singularities is emphasized, which should trace the lower boundary N_f^* of the conformal window in QCD and supersymmetric QCD.
Grunberg, Georges
core   +2 more sources

The Purely Leptonic and Semileptonic Decays of Ds∗ Meson

open access: yesAdvances in High Energy Physics, Volume 2026, Issue 1, 2026.
With the potential prospects of the Ds∗ at high‐luminosity heavy‐flavor experiments in the future, we investigated the CKM‐favored and tree‐dominated leptonic Ds∗⟶ℓν¯ℓ,ℓ=e,μ,τ and semileptonic Ds∗⟶Mℓ′ν¯ℓ′ M=ϕ,η′,K and ℓ′=e,μ weak decays in the standard model (SM).
Xiao-Lin Wang   +3 more
wiley   +1 more source

Results and techniques for higher order calculations within the gradient-flow formalism

open access: yesJournal of High Energy Physics, 2019
We describe in detail the implementation of a systematic perturbative approach to observables in the QCD gradient-flow formalism. This includes a collection of all relevant Feynman rules of the five-dimensional field theory and the composite operators ...
Johannes Artz   +4 more
doaj   +1 more source

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