Deuteron structure functions in the context of few-body physics

Thomas, A. W.; Melnitchouk, Wally

doi:10.1016/s0375-9474(98)00029-3

Cited by 6 publications

(5 citation statements)

References 99 publications

(165 reference statements)

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“…The neutron structure function is then extracted from a measurement of the proton and deuteron structure functions by employing a model for the deuteron wave function. As an example, we consider the covariant approach of (Thomas and Melnitchouk, 1998). In this case, the proton and neutron structure functions are convoluted with a nucleon density function in the deuteron.…”

Section: G the Neutron Structure Functionmentioning

confidence: 99%

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Nucleon and pion distribution functions in the valence region

2010

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We provide an experimental and theoretical perspective on the behavior of unpolarized distribution functions for the nucleon and pion on the valence-quark domain; namely, Bjorken-x > ∼ 0.4. This domain is key to much of hadron physics; e.g., a hadron is defined by its flavor content and that is a valence-quark property. Furthermore, its accurate parametrization is crucial to the provision of reliable input for large collider experiments. We focus on experimental extractions of distribution functions via electron and muon inelastic scattering, and from Drell-Yan interactions; and on theoretical treatments that emphasize an explanation of the distribution functions, providing an overview of major contemporary approaches and issues. Valence-quark physics is a compelling subject, which probes at the heart of our understanding of the Standard Model. There are numerous outstanding and unresolved challenges, which experiment and theory must confront. In connection with experiment, we explain that an upgraded Jefferson Lab facility is well-suited to provide new data on the nucleon, while a future electron ion collider could provide essential new data for the mesons. There is also great potential in using Drell-Yan interactions, at FNAL, J-PARC and GSI, to push into the large-x domain for both mesons and nucleons. We argue furthermore that explanation, in contrast to modeling and parametrization, requires a widespread acceptance of the need to adapt theory: to the lessons learnt already from the methods of nonperturbative quantum field theory; and a fuller exploitation of those methods. * Electronic address: holt@anl.gov † Electronic address: cdroberts@anl.gov

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Section: G the Neutron Structure Functionmentioning

confidence: 99%

“…The results (Thomas and Melnitchouk, 1998) of this procedure for the ratio of the neutron to proton structure functions are shown in Fig. II.10.…”

Section: G the Neutron Structure Functionmentioning

confidence: 99%

Nucleon and pion distribution functions in the valence region

2010

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“…Corrections for nuclear shadowing in the deuteron 73,74 , which are important at x ≪ 0.1, are small in the region covered by this experiment.…”

Section: Light Quark Seamentioning

confidence: 94%

“…Corrections for nuclear shadowing in the deuteron 73,74 , which are important at x ≪ 0.1, are small in the region covered by this experiment. The relatively large asymmetry found in these experiments, shown in Fig.…”

Section: Light Quark Seamentioning

confidence: 94%

QCD and the Structure of the Nucleon in Electron Scattering

Melnitchouk¹

2001

Hadronic Structure

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The internal structure of the nucleon is discussed within the context of QCD. Recent progress in understanding the distribution of flavor and spin in the nucleon is reviewed, and prospects for extending our knowledge of nucleon structure in electron scattering experiments at modern facilities such as Jefferson Lab are outlined.Comment: 52 pages, 11 figures, lectures presented at the 1999 Hampton University Graduate Studies (HUGS) summer school, Jefferson La

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“…SU( 6)-symmetric constituent-quark-model, pQCD and the result obtained if the nucleon's Faddeev amplitude contains no axial-vector diquark correlation. Extractions from data: squares - [40]; triangles - [41]; and circles [42]. (For a more complete explanation, see Ref.…”

mentioning

confidence: 99%

T(r)opical Dyson-Schwinger Equations

Chang¹,

Cloët²,

Roberts³

et al. 2011

AIP Conference Proceedings

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We provide a glimpse of recent progress in hadron physics made using QCD's Dyson-Schwinger equations, reviewing: the notion of in-hadron condensates and a putative solution of a gross problem with the cosmological constant; the dynamical generation of quark anomalous chromo- and electro-magnetic moments, and their material impact upon the proton's electric/magnetic form factor ratio; a computation that simultaneously correlates the masses of meson and baryon ground- and excited-states; and a prediction for the x->1 value of the ratio of neutron/proton distribution functions.Comment: 7 pages, 3 figures. Contribution to the proceedings of "T(r)opical QCD 2010: Cairns CSSM 2010 Workshop," Cairns Colonial Club, Cairns, Australia, 26 September - 1 Octobe

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Deuteron structure functions in the context of few-body physics

Cited by 6 publications

References 99 publications

Nucleon and pion distribution functions in the valence region

Nucleon and pion distribution functions in the valence region

QCD and the Structure of the Nucleon in Electron Scattering

T(r)opical Dyson-Schwinger Equations

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