Gluon Saturation
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Espalhamento inelástico profundo em colisões elétron-íon / Deep inelastic scattering in electron-ion collisions
In this work we considered two subjects of QCD at high energies. The nuclear gluon distributions and the parton saturation. The currently available parametrizations of nuclear gluon distribution in the literature are very different among themselves. We show that it is possible to relate the gluon distribution in a nucleus at high energies to nuclear inclusiv
Publicado em: 2009
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2. Gluon saturation and proton: anti-proton cross sections
We study proton - anti-proton cross sections in the framework of an updated minijet eikonal model. We propose a different scheme for fixing the parameters, in which we make use of the measured minijet cross section. We compare the results obtained with the GRV98, MRST98, CTEQ6-L and KLN gluon distributions. The latter includes gluon saturation effects. We co
Brazilian Journal of Physics. Publicado em: 2007-03
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3. Gluon saturation and leading particle spectra in pp collisions
In this work we use the IGM, a model that describes well the energy flux in hadronic collisions, to study the leading particle spectrum when saturation effects on the gluon distribution function are included. The leading particle spectrum is calculated for several center of mass energies (Ös). In the very high energy limit we compar
Brazilian Journal of Physics. Publicado em: 2007-03
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4. Dipolos de cor e interações a altas energias / Color dipoles and high energies interaction
A altas energias o n\ucleon (ou o n\ucleo) pode ser visto como um sistema denso de gl\uons, o condensado de vidro de cor. Neste trabalho estudamos a intera\c\~ao deste sistema com dipolos de cor. Esta intera\c\~ao \e representada pela se\c\~ao de choque dipolo-alvo, a qual \e modelada. Utilizamos alguns dos modelos propostos na literatura para descrever os d
Publicado em: 2007
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5. Saturation in high-energy QCD
In these proceedings, I shall review the basic concepts of perturbative QCD in its high-energy limit, emphasising the approach to the unitarity limit, usually referred to as saturation. I shall explain the basic framework showing the need for saturation, first, from a simple picture of the high-energy behaviour, then, giving a short derivation of the equatio
Brazilian Journal of Physics. Publicado em: 2006-12
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6. Gluon saturation and energy loss in hadronic collisions / "Saturação de gluons e perda de energia em colisões hadrônicas"
In this work we use the Interacting Gluon Model (IGM), a model that describes quite well the energy flow in hadronic collisions, to study the leading particle spectrum when gluon saturation effects are included. The leading particle spectrum is calculated for several center of mass energies (s^1/2), using gluon distribution functions with and without saturat
Publicado em: 2006