9,110 research outputs found

    Alteração e conservação do leite.

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    Propriedades importantes; contaminacao; alteracao; conservacao; conclusao e recomendacao.bitstream/CNPAT-2010/4642/1/Dc-024.pd

    Coulomb corrections to inclusive cross sections at the future Electron - Ion Collider

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    The experimental results of the future electron -- ion (eAe A) collider are expected to constrain the dynamics of the strong interactions at small values of the Bjorken -- xx variable and large nuclei. Recently it has been suggested that Coulomb corrections can be important in inclusive and diffractive eAeA interactions. In this paper we present a detailed investigation of the impact of the Coulomb corrections to some of the observables that will be measured in the future eAeA collider. In particular, we estimate the magnitude of these corrections for the charm and longitudinal cross sections in inclusive and diffractive interactions. Our results demonstrate that the Coulomb corrections for these observables are negligible, which implies that they can be used to probe the QCD dynamics.Comment: 9 pages, 6 figures. Improved version to be published in Physical Review

    Coherent and incoherent production of vector mesons in ultraperipheral collisions of Xenon-ions within the QCD parton saturation approach

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    In this paper we analyse the exclusive vector meson photoproduction in the recent run using Xenon-ions at energy of 5.44 TeV performed by the Large Hadron Collider. We focus on the ultraperipheral collisions and provide theoretical predictions for coherent and incoherent cross sections within the color dipole approach and gluon saturation framework. The rapidity distribution is investigated in both cases and comparison to other approaches available at literature is done. We show that the expected yields are enough to perform reliable cross section measurements for light mesons as ρ0\rho^0 and ϕ\phi.Comment: 6 figures, 7 pages, accepted to be published in PRD. arXiv admin note: text overlap with arXiv:1708.0854

    Construção do conhecimento sobre os produtos da biodiversidade em um assentamento rural.

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    Editores técnicos: Marcílio José Thomazini, Elenice Fritzsons, Patrícia Raquel Silva, Guilherme Schnell e Schuhli, Denise Jeton Cardoso, Luziane Franciscon. EVINCI. Resumos

    Hard gluon evolution in the last stage of the bottom-up thermalization

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    The study of how fast thermalization in heavy ion collisions occurs has been one of the central topics in the heavy ion community. In the weak coupling picture this thermalization occurs from 'the bottom up': high energy partons, formed early in the collision, radiate low energy gluons which then proceed to equilibrate among themselves, forming a thermal bath that brings the high energy sector to equilibrium. In this scheme we apply a model on parton energy loss to discuss the effects of medium expansion on the thermalization problem and estimate the average transverse momentum diffusivity for thermalization in a Bjorken expanding medium.Comment: 8 pages, 4 figures. Current version includes updated references and a more detailed discussion on the underlying assumption
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