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相关论文: The Double Scattering Contribution to $b_1(x,Q^2)$…

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We investigate polarized deuteron structure functions at small values of the Bjorken variable, x < 0.1. In this region contributions from the coherent interaction of diffractively excited hadronic states with both nucleons become important.…

高能物理 - 唯象学 · 物理学 2008-11-26 J. Edelmann , G. Piller , W. Weise

We propose two new sources of a substantial tensor polarization of sea partons in the deuteron: the diffractive nuclear shadowing which depends on the alignment of nucleons in the polarized deuteron and the nuclear excess of pions in the…

高能物理 - 唯象学 · 物理学 2016-09-06 N. N. Nikolaev , W. Schaefer

We calculate nuclear shadowing in lepton-deuteron deep inelastic scattering, which arises from the double scattering of the virtual photon from both nucleons in the deuteron. The total correction to the deuteron structure function is found…

核理论 · 物理学 2008-11-26 W. Melnitchouk , A. W. Thomas

We demonstrate that at sufficiently high energies where the eikonal regime is established for hadronic interactions, the double scattering subprocess can be clearly identified and isolated in quasi-elastic deuteron electro-disintegration…

核理论 · 物理学 2024-02-22 Werner U Boeglin , Misak M Sargsian

We argued that deep inelastic scattering (DIS) at small values of Q squared is an essentially nonperturbative process and can be described, partially at least, by the vector meson dominance (VMD) model. We showed by the straightforward…

高能物理 - 唯象学 · 物理学 2015-06-19 Edgar Bugaev , Boris Mangazeev

We re-examine the predictions of a two-phase model of shadowing in nuclear deep-inelastic scattering in light of new NMC data on the x, A and Q**2 dependence of the ratios of structure functions. The model, which combines vector meson…

高能物理 - 唯象学 · 物理学 2008-11-26 W. Melnitchouk , A. W. Thomas

We analyze deep inelastic scattering at small Bjorken x, using the approximate conformal invariance of QCD at high energies. Hard pomeron exchanges are resummed eikonally, restoring unitarity at large values of the phase shift in the dual…

高能物理 - 唯象学 · 物理学 2009-03-19 Lorenzo Cornalba , Miguel S. Costa

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 investigate shadowing corrections to the polarized deuteron structure functions g_1^d and b_1. In the kinematic domain of current fixed target experiments we observe that shadowing effects in g_1^d are approximately twice as large as for…

核理论 · 物理学 2009-10-30 J. Edelmann , G. Piller , W. Weise

We present a unified description of nuclear deep inelastic scattering (DIS) over the whole region $0<x<1$ of the Bjorken variable. Our approach is based on a relativistically covariant formalism which uses analytical properties of quark…

核理论 · 物理学 2009-09-25 S. A. Kulagin , G. Piller , W. Weise

We discuss the implications of a strong enhancement of diffraction for multiproduction in DIS off nuclear targets. The predicted effects are large and observable at HERA. We present the prediction of a large tensor structure function b_2(x)…

高能物理 - 唯象学 · 物理学 2008-02-03 N. N. Nikolaev , W. Schaefer , B. G. Zakharov , V. R. Zoller

A calculation of vector and tensor polarization observables of a deuteron in an optical potential framework for elastic proton-deuteron scattering at the incident deuteron energy $E_d=880$ MeV is presented. The main aim is to point out the…

核理论 · 物理学 2007-05-23 M. A. Shikhalev

The general spin structure of the matrix element, taking into account the two--photon exchange contribution, for the elastic electron (positron) --deuteron scattering has been derived using general symmetry properties of the hadron…

高能物理 - 唯象学 · 物理学 2008-11-26 G. I. Gakh , E. Tomasi-Gustafsson

The dependence of the diffractive nuclear shadowing and the nuclear pion excess effect on the deuteron spin alignment leads to a substantial tensor polarisation of sea partons in the deuteron. The corresponding tensor structure function…

高能物理 - 唯象学 · 物理学 2007-05-23 W. Schaefer

The deuteron-proton elastic scattering has been studied in the multiple scattering expansion formalism. The essential attention has been given to such relativistic problem as a deuteron wave function in a moving frame and transformation of…

核理论 · 物理学 2009-01-26 N. B. Ladygina

Differential cross sections of deep inelastic scattering of charged leptons from hadrons are investigated by using the gauge/string duality. We consider vector mesons derived from different holographic dual models obtaining a general…

高能物理 - 理论 · 物理学 2016-01-27 Ezequiel Koile , Nicolas Kovensky , Martin Schvellinger

We review the theory and phenomenology of deep inelastic polarized lepton-nucleon scattering in the light of recent data with a deuteron target from the SMC at CERN and a Helium 3 target from the E142 experiment at SLAC. After including…

高能物理 - 唯象学 · 物理学 2008-02-03 John Ellis , Marek Karliner

Polarized Compton scattering on the deuteron is studied in nuclear effective field theory. A set of tensor structures is introduced to define 12 independent Compton amplitudes. The scalar and vector amplitudes are calculated up to ${\cal…

核理论 · 物理学 2009-11-10 Jiunn-Wei Chen , Xiangdong Ji , Yingchuan Li

Nuclear shadowing corrections to the structure functions of deep inelastic scattering on intermediate-mass nuclei are calculated at very small values of Bjorken x and small values of Q^2 (Q^2<5 Gev^2). The two-component approach developed…

高能物理 - 唯象学 · 物理学 2020-09-02 Edgar V. Bugaev , Boris V. Mangazeev

In [1], we demonstrated that the structure function $g_1(x_B,Q^2)$ measured in polarized deeply inelastic scattering (DIS) is dominated by the triangle anomaly in both the Bjorken limit of large $Q^2$ and the Regge limit of small $x_B$. In…

高能物理 - 唯象学 · 物理学 2022-04-11 Andrey Tarasov , Raju Venugopalan
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