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9 papers · 2 filters
Interactions at large distances and spin effects in nucleon-nucleon and nucleon-nuclei scattering
J. R. Cudell, E. Predazzi, O. V. Selyugin
The momentum-transfer dependence of the slopes of the spin-non-flip and spin-flip amplitudes is analysed. It is shown that the long tail of the hadronic potential in impact paramet…
Mapping out the quark structure of hadrons in QCD
Alexander P. Bakulev, S. V. Mikhailov, N. G. Stefanis
In the context of QCD sum rules with non-local condensates we present a pion distribution amplitude, which is double-humped with its end-points x\to(0,1) strongly suppressed, and s…
Soft gluon resummation in the quark-vector boson vertex at high energy: On-mass-shell case
Igor O. Cherednikov
Resummation of the soft gluon radiative corrections for the quark-vector boson vertex is performed within the path-integral (world-line) approach. The leading order expression for…
Analytic Invariant Charge in QCD
A. V. Nesterenko
This paper gives an overview of recently developed model for the QCD analytic invariant charge. Its underlying idea is to bring the analyticity condition, which follows from the ge…
Nonperturbative aspects of the QCD analytic invariant charge
A. V. Nesterenko
In the framework of the analytic approach to Quantum Chromodynamics a new model for the strong running coupling has recently been developed. Its underlying idea is to impose the an…
Anomalous decay of pion and eta at finite density
Pedro Costa, M. C. Ruivo, Yu. L. Kalinovsky
We study the anomalous decays in the framework of the three--flavor Nambu--Jona-Lasinio [NJL] model, in the vacuum and in quark matter in --equilibrium. It is fou…