Nucleon Strangeness
Mostrando 1-5 de 5 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. Produção termica de particulas em colisões nucleares relativisticas / Thermal particle production in relativistic nuclear collisions
Reações nucleares envolvendo núcleos pesados em energia de colisão no limite relativístico são estudadas para conhecer as leis e características da matéria em condições extremas de energia e temperatura. Em uma colisão de núcleos pesados no regime relativístico, milhares de partículas são produzidas. Neste trabalho, estudamos a produção de p
Publicado em: 2008
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3. Vector meson and associated strangeness production using a linearly polarized photon beam at Jefferson lab
The set of experiments forming the g8a run took place in the summer of 2001 in Hall B of Jefferson Lab. The g8a run was the commissioning experiment for the linearly-polarized photon beam at CLAS. The aim of these experiments is to improve the understanding of the underlying symmetry of the quark degrees of freedom in the nucleon, the nature of the parity ex
Brazilian Journal of Physics. Publicado em: 2004-09
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4. JLab: probing hadronic physics with electrons and photons
Precision measurements of the structure of nucleons and nuclei in the regime of strong interaction QCD are now possible with the availability of high current polarized electron beams, polarized targets, and recoil polarimeters, in conjunction with modern spectrometers and detector instrumentation. The physics at JLab will be highlighted using two recent meas
Brazilian Journal of Physics. Publicado em: 2004-09
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5. Nuclear structure in nonmesonic weak decay of hypernuclei
A general shell model formalism for the nonmesonic weak decay of the hypernuclei has been developed. It involves a partial wave expansion of the emitted nucleon waves, preserves naturally the antisymmetrization between the escaping particles and the residual core, and contains as a particular case the weak lambda-core coupling formalism. The hypernuclei are
Brazilian Journal of Physics. Publicado em: 2003-06