Results 81 to 90 of about 531,410 (302)
The Strong Coupling Constant from Hadron Structure Phenomenology
, 2012 We present recent developments on the role of the running coupling constant at the intersection of perturbative and nonperturbative QCD. A number of experiments show a smooth transition from small to large scales given by the four-momentum transfer in ...
Courtoy, A., Liuti, Simonetta
core +1 more source
Physics Letters B, 2021 We perform a study of W-boson production in polarized proton-proton collisions through next-to-next-to-leading order (NNLO) in perturbative QCD. This calculation is required to extend the extraction of polarized parton distribution functions to NNLO ...
Radja Boughezal +2 more
doaj
Electric conductivity of the quark-gluon plasma investigated using a perturbative QCD based parton cascade [PDF]
, 2014 Electric conductivity is sensitive to effective cross sections among the particles of the partonic medium. We investigate the electric conductivity of a hot plasma of quarks and gluons, solving the relativistic Boltzmann equation.
M. Greif, I. Bouras, Zhe Xu, C. Greiner
semanticscholar +1 more source
Axion‐Like Interactions and CFT in Topological Matter, Anomaly Sum Rules and the Faraday Effect
Advanced Physics Research, EarlyView.This review investigates the connection between chiral anomalies and their manifestation in topological materials, using both perturbative methods based on ordinary quantum field theory and conformal field theory (CFT). It emphasizes the role of CFT in momentum space for parity‐odd correlation functions, and their reconstruction by the inclusion of a ...
Claudio Corianò +4 more
wiley +1 more source
Perturbative QCD and tau decay [PDF]
Nuclear Physics B - Proceedings Supplements, 1997 Sufficiently inclusive observables in the decay of the tau lepton can be calculated using the methods of perturbative QCD. These include the asymmetry parameter $A_ $ that determines that angular distribution of the total hadron momentum in the decay of a polarized tau.
openaire +3 more sources
On the power divergence in quasi gluon distribution function
Journal of High Energy Physics, 2018 Recent perturbative calculation of quasi gluon distribution function at one-loop level shows the existence of extra linear ultraviolet divergences in the cut-off scheme.
Wei Wang, Shuai Zhao
doaj +1 more source
Nuclear Physics in the Era of Quantum Computing and Quantum Machine Learning
Advanced Quantum Technologies, EarlyView.The use of QML in the realm of nuclear physics at low energy is almost nonexistent. Three examples of the use of quantum computing and quantum machine in nuclear physics are presented: the determination of the phase/shape in nuclear models, the calculation of the ground state energy, and the identification of particles in nuclear physics experiments ...
José‐Enrique García‐Ramos +4 more
wiley +1 more source
The Status of Perturbative QCD [PDF]
, 1989 The advances in perturbative QCD are reviewed. The status of determinations of the coupling constant αs and the parton distribution functions is presented. New theoretical results on the spin dependent structure functions of the proton are also reviewed.
openaire +2 more sources
Topics in non-perturbative QCD [PDF]
Czechoslovak Journal of Physics, 2001 23 pages,6figures.Lectures delivered at the Czech Summer School,Prague Aug28-Sept1st 2000,to appear in Czech Journal of Physics Feb ...
openaire +3 more sources
QCD at the amplitude level: Fock state interference in heavy quark electroproduction
Journal of High Energy Physics, 2023 Quantum chromodynamics (QCD) rigorously predicts the existence of both nonperturbative intrinsic and perturbative extrinsic heavy quark contents of nucleons.
Valery E. Lyubovitskij, Ivan Schmidt
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