Phenomenology of nuclear shadowing in deep-inelastic scattering

Piller, G.; Ratzka, W.; Weise, W.

doi:10.1007/bf01299761

Cited by 60 publications

(105 citation statements)

References 38 publications

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“…In Fig.5.10 we present typical results for the shadowing ratio 5 R A = F A 2 /F N 2 from Ref. [169].…”

Section: Vector Mesons and Aligned Jetsmentioning

confidence: 91%

“…A comparison of results from Ref. [169] with NMC data for the slope b of the ratio F Sn 2 /F C 2 ≈ a + b ln Q 2 is presented in Fig.5.11. For a more detailed discussion of these issues including QCD corrections, see Ref.…”

Section: Vector Mesons and Aligned Jetsmentioning

confidence: 98%

“…[169,170]. Their starting point is the hadronic spectrum of the virtual photon exchanged in the deep-inelastic scattering process.…”

Section: Vector Mesons and Aligned Jetsmentioning

confidence: 99%

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Nuclear deep-inelastic lepton scattering and coherence phenomena

Piller¹,

Weise²

2000

Physics Reports

176

241

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This review outlines our present experimental knowledge and theoretical understanding of deepinelastic scattering on nuclear targets. The emphasis is primarily on nuclear coherence phenomena, such as shadowing, where the key physics issue is the exploration of hadronic and quark-gluon fluctuations of a high-energy virtual photon and their passage through the nuclear medium. New developments in polarized deep-inelastic scattering on nuclei are also discussed, and more conventional binding and Fermi motion effects are summarized. The report closes with a brief outlook on vector meson electroproduction, nuclear shadowing at very large Q 2 and the physics of high parton densities in QCD.

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“…In Fig.5.10 we present typical results for the shadowing ratio 5 R A = F A 2 /F N 2 from Ref. [169].…”

Section: Vector Mesons and Aligned Jetsmentioning

confidence: 91%

Section: Vector Mesons and Aligned Jetsmentioning

confidence: 98%

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Nuclear deep-inelastic lepton scattering and coherence phenomena

Piller¹,

Weise²

2000

Physics Reports

176

241

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“…Describing the propagation of theqq pair in a nuclear medium, the Green function Gq q ( r 2 , z 2 ; r 1 , z 1 ) satisfies again the time-dependent two-dimensional Schrödinger equation (13). However, the potential in this case acquires in addition an imaginary part.…”

Section: Introductionmentioning

confidence: 99%

“…In the process of numerical solution of the Schrödinger equation (13) for the Green function Gq q ( r 2 , z 2 ; r 1 , z 1 ) with the initial condition (14), it is much more convenient to use the following substitutions [18] …”

Section: Introductionmentioning

confidence: 99%

Gluon shadowing in DIS off nuclei

Kopeliovich¹,

Nemchik²,

Potashnikova³

et al. 2008

J. Phys. G: Nucl. Part. Phys.

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Within a light-cone quantum-chromodynamics dipole formalism based on the Green function technique, we study nuclear shadowing in deep-inelastic scattering at small Bjorken x Bj ∼ < 0.01. Such a formalism incorporates naturally color transparency and coherence length effects. Calculations of the nuclear shadowing for theqq Fock component of the photon are based on an exact numerical solution of the evolution equation for the Green function, using a realistic form of the dipole cross section and nuclear density function. Such an exact numerical solution is unavoidable for x Bj ∼ > 10 −4 , when a variation of the transverse size of theqq Fock component must be taken into account. The eikonal approximation, used so far in most other models, can be applied only at high energies, when x Bj ∼ < 10 −4 and the transverse size of theqq Fock component is "frozen" during propagation through the nuclear matter. At x Bj ≤ 0.01 we find quite a large contribution of gluon suppression to nuclear shadowing, as a shadowing correction for the higher Fock states containing gluons. Numerical results for nuclear shadowing are compared with the available data from the E665 and NMC collaborations. Nuclear shadowing is also predicted at very small x Bj corresponding to LHC kinematical range. Finally the model predictions are compared and discussed with the results obtained from other models.

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