Results 271 to 280 of about 194,290 (301)
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Physics Reports, 1988
Soft multiparticle production is a dominant feature of most events in high energy hadronic collisions. Since soft processes have no large momentum transfer, perturbative QCD expansions in the strong coupling constant are not applicable. However, suitable large N expansions of QCD provide a topological classification of diagrams and a potentially useful
A. Capella +3 more
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Soft multiparticle production is a dominant feature of most events in high energy hadronic collisions. Since soft processes have no large momentum transfer, perturbative QCD expansions in the strong coupling constant are not applicable. However, suitable large N expansions of QCD provide a topological classification of diagrams and a potentially useful
A. Capella +3 more
openaire +1 more source
Physical Review D, 1992
The quark and gluon distributions of the photon are determined in leading and higher order by imposing a vector-meson dominance (VMD) valencelike structure at a low resolution scale adopted from the pion. This leaves only one free parameter, not sufficiently constrained by VMD, to be fixed by experiment.
, Glück, , Reya, , Vogt
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The quark and gluon distributions of the photon are determined in leading and higher order by imposing a vector-meson dominance (VMD) valencelike structure at a low resolution scale adopted from the pion. This leaves only one free parameter, not sufficiently constrained by VMD, to be fixed by experiment.
, Glück, , Reya, , Vogt
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Physical Review D, 1986
We study the different explanations of the European Muon Collaboration effect. Although the theoretical models are very sensitive to input free-nucleon structure functions, we find that each has distinctive testable traits. Therefore, we examine different reactions to see which can distinguish the models.
, Bickerstaff, , Birse, , Miller
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We study the different explanations of the European Muon Collaboration effect. Although the theoretical models are very sensitive to input free-nucleon structure functions, we find that each has distinctive testable traits. Therefore, we examine different reactions to see which can distinguish the models.
, Bickerstaff, , Birse, , Miller
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Lattice QCD exploration of parton pseudo-distribution functions
, 2017We demonstrate a new method of extracting parton distributions from lattice calculations. The starting idea is to treat the generic equal-time matrix element ${\cal M} (Pz_3, z_3^2)$ as a function of the Ioffe time $\nu = Pz_3$ and the distance $z_3 ...
K. Orginos +3 more
semanticscholar +1 more source
Quantum statistical parton distributions
Journal of Physics A: Mathematical and General, 2002Summary: Modified Fermi-Dirac functions for the fermionic partons and a Bose-Einstein expression for gluons allow us to successfully describe both polarized and unpolarized structure functions in terms of a small number of parameters. Definite predictions are made for \(\bar q\) distributions to be tested in forthcoming experiments.
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Parton distributions and lattice-QCD calculations: Toward 3D structure
Progress in Particle and Nuclear Physics, 2021Martha Constantinou +2 more
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