Spin-polarized high-energy scattering of charged leptons on nucleons

Burkardt, Matthias; Miller, C. A.; Nowak, W.-D.

doi:10.1088/0034-4885/73/1/016201

Cited by 103 publications

(84 citation statements)

References 275 publications

(663 reference statements)

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“…Readers who are interested in the details of these topics are referred to the very useful books, reviews, overview articles and progress reports on the structure of the nucleon [TW] and its spin structure [BMN08], form factors [HdJ04, PPV07,ARZ07], PDFs [Sti08], GPDs [Ji98,GPV01,Die03,BR05,BP07], lattice hadron structure calculations [Org06,Häg07,Zan08], and chiral effective field theory and ChPT [Hol95,Sch03,SS05], as well as to the references in the corresponding sections below.…”

Section: Preface and Disclaimermentioning

confidence: 99%

Hadron structure from lattice quantum chromodynamics

2010

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This is a review of hadron structure physics from lattice QCD. Throughout this report, we place emphasis on the contribution of lattice results to our understanding of a number of fundamental physics questions related to, e.g., the origin and distribution of the charge, magnetization, momentum and spin of hadrons. Following an introduction to some of the most important hadron structure observables, we summarize the methods and techniques employed for their calculation in lattice QCD. We briefly discuss the status of relevant chiral perturbation theory calculations needed for controlled extrapolations of the lattice results to the physical point. In the main part of this report, we give an overview of lattice calculations on hadron form factors, moments of (generalized) parton distributions, moments of hadron distribution amplitudes, and other important hadron structure observables. Whenever applicable, we compare with results from experiment and phenomenology, taking into account systematic uncertainties in the lattice computations. Finally, we discuss promising results based on new approaches, ideas and techniques, and close with remarks on future perspectives of the field.

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Section: Preface and Disclaimermentioning

confidence: 99%

Hadron structure from lattice quantum chromodynamics

2010

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“…GPDs are linked to many processes and observables involving hadrons [622], but their most intuitive application is in the context of Ji's angular momentum decomposition (see section 3.4) and in three-dimensional imaging (see section 3.6). Both involve GPDs in the ξ = 0 limit (the ξ-dependence drops out in the Ji sum rule).…”

Section: Introductionmentioning

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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“…During the past two decades, a lot of attention has been paid to generalized parton distributions (GPDs) [1][2][3][4][5][6][7] and to transverse-momentum dependent parton distributions (TMDs) [8][9][10][11][12]. Those objects are of particular interest because they describe the three-dimensional parton structure of hadronsthe distribution of the parton's longitudinal momentum and transverse position in the case of GPDs, and the distribution of the parton's longitudinal momentum and transverse momentum in the case of TMDs.…”

Section: Introductionmentioning

confidence: 99%

The multidimensional nucleon structure

Pasquini

Lorcé

2016

EPJ Web Conf.

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Abstract. We discuss different kinds of parton distributions, which allow one to obtain a multidimensional picture of the internal structure of the nucleon. We use the concept of generalized transverse momentum dependent parton distributions and Wigner distributions, which combine the features of transverse-momentum dependent parton distributions and generalized parton distributions. We show examples of these functions within a phenomenological quark model, with focus on the role of the spin-spin and spin-orbit correlations of quarks.

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Spin-polarized high-energy scattering of charged leptons on nucleons

Cited by 103 publications

References 275 publications

Hadron structure from lattice quantum chromodynamics

Hadron structure from lattice quantum chromodynamics

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

The multidimensional nucleon structure

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