How well do we know the neutron structure function?

J. Arrington; J. G. Rubin; W. Melnitchouk

How well do we know the neutron structure function?

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arxiv 1110.3362 v1 pith:TDUF3K3T submitted 2011-10-14 hep-ph hep-exnucl-exnucl-th

J. Arrington , J. G. Rubin , W. Melnitchouk This is my paper · ORCID

classification hep-phhep-exnucl-exnucl-th

keywords deuteronfunctionneutronstructureanalysisnuclearcorrectionsdata

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We present a detailed analysis of the uncertainty in the neutron F2n structure function extracted from inclusive deuteron and proton deep-inelastic scattering data. The analysis includes experimental uncertainties as well as uncertainties associated with the deuteron wave function, nuclear smearing, and nucleon off-shell corrections. Consistently accounting for the Q^2 dependence of the data and calculations, and restricting the nuclear corrections to microscopic models of the deuteron, we find significantly smaller uncertainty in the extracted F2n/F2p ratio than in previous analyses. In addition to yielding an improved extraction of the neutron structure function, this analysis also provides an important baseline that will allow future, model-independent extractions of neutron structure to be used to examine nuclear medium effects in the the deuteron.

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Neutron valence structure from nuclear deep inelastic scattering
nucl-th 2019-08 conditional novelty 6.0 of 10

The extracted F2^n/F2^p ratio saturates at 0.47 ± 0.04 as x approaches 1, supporting perturbative QCD and Dyson-Schwinger predictions over scalar diquark models.

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