Non Perturbative Methods
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. The meson cloud and the strange form factors of the proton / A nuvem mesônica e os fatores de forma estranhos do próton
The goal of this work was to include the scalar $\kappa$ meson on the meson cloud of the proton, and then to verify if the strangeness contribution to the electromagnetic properties of the proton could be explained by the meson cloud model. The observables that quantify such a contribution are the electric ($G_E^s$) and magnetic ($G_M^s$) strange form factor
Publicado em: 2008
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2. Dynamical gluon mass in QCD processes
We perform phenomenological applications of modified gluon propagators and running coupling constants in scattering processes in Quantum Chromodynamics (QCD). The modified forms of propagators and running coupling constant are obtained by non-perturbative methods. The processes investigated includes the diffractive ones - proton-proton elastic scattering, li
Brazilian Journal of Physics. Publicado em: 2007-07
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3. Probing a color glass condensate in high energy heavy ion collisions
At very high energies, the partons in the nuclear wavefunction form a color glass condensate. Since the occupation number of partons in the color glass condensate is large, classical methods can be used to compute multi-particle production in the initial instants of a high energy heavy ion collision. Non-perturbative expressions are derived relating the dist
Brazilian Journal of Physics. Publicado em: 2003-06