Nuclear shadowing in Glauber–Gribov theory with Q
                     2-evolution

Armesto, N.; Kaǐdalov, A. B.; Salgado, Carlos A.; Tywoniuk, Konrad

doi:10.1140/epjc/s10052-010-1360-0

Cited by 23 publications

(31 citation statements)

References 53 publications

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“…(5.33) tends to reduce the amount of nuclear shadowing as compared to the quasi-eikonal approximation used in the literature [803,811]. Also, the AGK technique allows one to calculate other quantities such as nuclear diffractive PDFs and fluctuations of multiplicity in non-diffractive DIS [803,807,812] both of which turn out to be sensitive to the pattern of the color fluctuations, see Section 5.4.…”

Section: Vadim Guzey and Mark Strikmanmentioning

confidence: 99%

Gluons and the quark sea at high energies: distributions, polarization, tomography

Boer¹,

Diehl²,

Milner³

et al. 2011

198

291

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ForewordThe study of the fundamental structure of nuclear matter is a central thrust of physics research in the United States. As indicated in Frontiers of Nuclear Science, the 2007 Nuclear Science Advisory Committee long range plan, consideration of a future Electron-Ion Collider (EIC) is a priority and will likely be a significant focus of discussion at the next long range plan. We are therefore pleased to have supported the ten week program in fall 2010 at the Institute of Nuclear Theory which examined at length the science case for the EIC. This program was a major effort; it attracted the maximum allowable attendance over ten weeks.This report summarizes the current understanding of the physics and articulates important open questions that can be addressed by an EIC. It converges towards a set of "golden" experiments that illustrate both the science reach and the technical demands on such a facility, and thereby establishes a firm ground from which to launch the next phase in preparation for the upcoming long range plan discussions. We thank all the participants in this productive program. In particular, we would like to acknowledge the leadership and dedication of the five co-organizers of the program who are also the co-editors of this report.David Kaplan, Director, National Institute for Nuclear Theory Hugh Montgomery, Director, Thomas Jefferson National Accelerator Facility Steven Vigdor, Associate Lab Director, Brookhaven National Laboratory iii Preface This volume is based on a ten-week program on "Gluons and the quark sea at high energies", which took place at the Institute for Nuclear Theory (INT) in Seattle from September 13 to November 19, 2010. The principal aim of the program was to develop and sharpen the science case for an Electron-Ion Collider (EIC), a facility that will be able to collide electrons and positrons with polarized protons and with light to heavy nuclei at high energies, offering unprecedented possibilities for in-depth studies of quantum chromodynamics. Guiding questions were• What are the crucial science issues?• How do they fit within the overall goals for nuclear physics?• Why can't they be addressed adequately at existing facilities?• Will they still be interesting in the 2020's, when a suitable facility might be realized?The program started with a five-day workshop on "Perturbative and Non-Perturbative Aspects of QCD at Collider Energies", which was followed by eight weeks of regular program and a concluding four-day workshop on "The Science Case for an EIC".More than 120 theorists and experimentalists took part in the program over ten weeks. It was only possible to smoothly accommodate such a large number of participants because of the extraordinary efforts of the INT staff, to whom we extend our warm thanks and appreciation. We thank the INT Director, David Kaplan, for his strong support of the program and for covering a significant portion of the costs for printing this volume. We gratefully acknowledge additional financial support provided by BNL and JLab.The program w...

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Section: Vadim Guzey and Mark Strikmanmentioning

confidence: 99%

Gluons and the quark sea at high energies: distributions, polarization, tomography

Boer¹,

Diehl²,

Milner³

et al. 2011

198

291

View full text Add to dashboard Cite

show abstract

“…[22,23], the eikonal unitarization predicts a larger magnitude for the nuclear shadowing than the Schwimmer equation. For models that take into account the possibility of different intermediate states, see, e.g., Ref.…”

Section: Introductionmentioning

confidence: 89%

“…This model can be derived in the classical approach of the color glass condensate (CGC) formalism [19]. Another approach largely used in the literature is based on the connection between nuclear shadowing and the cross section for the diffractive dissociation of the projectile [20][21][22][23], which was established a long time ago by Gribov [18]. Its result can be derived using reggeon calculus [24] and the Abramovsky-Gribov-Kancheli cutting rules [25] and is a manifestation of the unitarity.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear shadowing in deep-inelastic scattering on nuclei: Comparing predictions of three unitarization schemes

Carvalho¹,

Gonçalves

Navarra

et al. 2013

Phys. Rev. C

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The measurement of the nuclear structure functions F A 2 (x, Q 2 ) and F A L (x, Q 2 ) at the future electron-ion collider will be of great relevance to understanding the origin of nuclear shadowing and to probe gluon saturation effects. Currently there are several phenomenological models, based on very distinct approaches, which describe the scarce experimental data quite successfully. One of main uncertainties comes from the schemes used to include the effects associated with the multiple scatterings and to unitarize the cross section. In this paper we compare the predictions of three distinct unitarization schemes of the nuclear structure function F A 2 that use the same theoretical input to describe the projectile-nucleon interaction. In particular, we consider as input the predictions of the color glass condensate formalism, which reproduce the inclusive and diffractive ep HERA data. Our results demonstrate that experimental analysis of F A 2 is able to discriminate between the unitarization schemes.

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“…Refs. [3,4,5,6]. I will focus on the linear DGLAP evolution only, studies of other evolution equations (BFKL, BK,...), saturation or nonlinear effects [7] will not be addressed here either.…”

Section: Introductionmentioning

confidence: 99%

Nuclear PDFs at NLO – status report and review of the EPS09 results

2011

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We review the current status of the global DGLAP analysis of nuclear parton distribution functions, nPDFs, focusing on the recent EPS09 analysis [1], whose output, EPS09NLO, is the best-constrained NLO nPDF set on the market. Collinear factorization is found to work very well in the kinematical region studied. With the error sets released in the EPS09 package one can compute how the nPDF-related uncertainties propagate into factorizable nuclear hard-process cross sections. A comparison with the other existing NLO nPDF sets is shown, and the BRAHMS forward-η hadron data from d+Au collisions are discussed in the light of the EPS09 nPDFs and their error sets.

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Nuclear shadowing in Glauber–Gribov theory with Q 2-evolution

Cited by 23 publications

References 53 publications

Gluons and the quark sea at high energies: distributions, polarization, tomography

Gluons and the quark sea at high energies: distributions, polarization, tomography

Nuclear shadowing in deep-inelastic scattering on nuclei: Comparing predictions of three unitarization schemes

Nuclear PDFs at NLO – status report and review of the EPS09 results

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