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相关论文: Nuclear Structure Functions at Small x from Inelas…

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Shadowing and antishadowing of the electromagnetic nuclear structure functions are produced by the coherence of multiscattering quark nuclear processes. This picture leads to substantially different antishadowing for charged and neutral…

高能物理 - 唯象学 · 物理学 2007-05-23 Ivan Schmidt

We consider the effect of nuclear shadowing in polarized deep inelastic scattering (DIS) on ^6LiD at small Bjorken x and its relevance to the extraction of the deuteron spin structure function g_{1}^{d}(x,Q^2). Using models, which describe…

高能物理 - 唯象学 · 物理学 2009-10-31 V. Guzey

We demonstrate that leading twist nuclear shadowing leads to large corrections for the extraction of the neutron structure function F_2n from the future deuteron collider data both in the inclusive and in the tagged structure function…

高能物理 - 唯象学 · 物理学 2009-11-10 L. Frankfurt , V. Guzey , M. Strikman

We extend the theory of leading twist nuclear shadowing to calculate leading twist nuclear diffractive parton distribution functions (nDPDFs). We observe that the quark and gluon nPDFs have different patterns of the $A$-dependence. It is…

高能物理 - 唯象学 · 物理学 2009-11-10 L. Frankfurt , V. Guzey , M. Strikman

Nuclear shadowing is observed in the per-nucleon cross-sections of positive muons on carbon, calcium and lead as compared to deuterium. The data were taken by Fermilab experiment E665 using inelastically scattered muons of mean incident…

高能物理 - 实验 · 物理学 2012-08-27 Fermilab E665 Collaboration

The overlap of the nucleons in nuclei plays an important role in understanding the nuclear dependence of deep inelastic scattering data. It is shown that the nuclear modification of the higher twist scale can be essentially determined by…

核理论 · 物理学 2009-11-10 P. Castorina

We discuss the longitudinal structure function in nuclear DIS at small $x$. We work within the framework of universal parton densities obtained in DGLAP analyses at NLO. We show that the nuclear effects on the longitudinal structure…

高能物理 - 唯象学 · 物理学 2014-11-21 N. Armesto , H. Paukkunen , C. A. Salgado , K. Tywoniuk

A future high-energy electron-ion collider would explore the non-linear weakly-coupled regime of QCD, and test the Color Glass Condensate (CGC) approach to high-energy scattering. Hard diffraction in deep inelastic scattering off nuclei…

高能物理 - 唯象学 · 物理学 2008-06-02 C. Marquet , H. Kowalski , T. Lappi , R. Venugopalan

We have studied nuclear structure functions $F_{1A}(x,Q^2)$ and $F_{2A}(x,Q^2)$ for electromagnetic and weak processes in the region of $1 GeV^2 < Q^2 <8 GeV^2$. The nuclear medium effects arising due to Fermi motion, binding energy,…

核理论 · 物理学 2016-12-21 H. Haider , F. Zaidi , M. Sajjad Athar , S. K. Singh , I. Ruiz Simo

We study the nuclear effects in the electromagnetic structure function F2(x,Q^2) in nuclei in the deep inelastic lepton nucleus scattering process by taking into account Fermi motion, binding, pion and rho meson cloud contributions.…

核理论 · 物理学 2011-04-28 M. Sajjad Athar , I. Ruiz Simo , M. J. Vicente Vacas

The coherence of multiscattering quark nuclear processes leads to shadowing and antishadowing of the electromagnetic nuclear structure functions in agreement with measurements. This picture leads to substantially different antishadowing for…

高能物理 - 唯象学 · 物理学 2009-11-11 Ivan Schmidt

The measurement of the nuclear structure function $F_2^A (x,Q^2)$ at the future electron-ion collider (EIC) will be of great relevance to understand the origin of the nuclear shadowing and to probe gluon saturation effects. Currently there…

高能物理 - 唯象学 · 物理学 2013-07-01 F. Carvalho , V. P. Goncalves , F. S. Navarra , E. G. de Oliveira

The dipole phenomenology, which has been quite successful applied to various hard reactions, especially on nuclear targets, is applied for calculation of Gribov inelastic shadowing. This approach does not include ad hoc procedures, which…

高能物理 - 唯象学 · 物理学 2016-11-03 B. Z. Kopeliovich

High energy photoproduction off nuclear targets is studied within the Glauber-Gribov approximation. The photon is assumed to interact as a $q\bar{q}$-system according to the Generalized Vector Dominance Model and as a ``bare photon'' in…

高能物理 - 唯象学 · 物理学 2009-10-28 R. Engel , J. Ranft , S. Roesler

Shadowing effects in deep-inelastic lepton-nucleus scattering probe the mass spectrum of diffractive leptoproduction from individual nucleons. We explore this relationship using current experimental information on both processes. In recent…

高能物理 - 唯象学 · 物理学 2009-10-30 G. Piller , G. Niesler , W. Weise

We discuss the close relation between shadowing in deep-inelastic lepton-nucleus scattering and diffractive photo- and leptoproduction of hadrons from free nucleons. We show that the magnitude of nuclear shadowing at small Bjorken-x, as…

高能物理 - 唯象学 · 物理学 2009-10-31 G. Piller , L. Ferreira , W. Weise

Nuclear shadowing corrections are dominated by soft interaction and grow as function of $1/x$ more slowly than the single scattering term, which has an essential contribution from hard interaction. Therefore, we predict vanishing nuclear…

核理论 · 物理学 2009-10-30 B. Z. Kopeliovich , B. Povh

We explore how nuclear modifications to the free nucleon structure functions (also known as shadowing) affect heavy quark production in collisions at different impact parameters. We assume that the nuclear modifications arise from a density…

核理论 · 物理学 2014-11-18 V. Emel'yanov , A. Khodinov , S. R. Klein , R. Vogt

In hadron-nucleus interactions, the stronger is nuclear shadowing in the total cross section the higher is the multiplicity of secondary hadrons. In deep inelastic scattering, nuclear shadowing at small $x$ is associated with the hadronlike…

高能物理 - 唯象学 · 物理学 2009-09-25 N. N. Nikolaev , B. G. Zakharov , V. R. Zoller

A coordinate space description of shadowing in deep-inelastic lepton-nucleus scattering is presented. The picture in the laboratory frame is that of quark-gluon fluctuations of the high-energy virtual photon, propagating coherently over…

核理论 · 物理学 2009-11-06 G. Piller , M. Vänttinen , L. Mankiewicz , W. Weise