Jefferson Lab > CIO > IR
Privacy and Security Notice


Publication Information

Title Extraction of the neutron F_2 structure function from inclusive proton and deuteron deep-inelastic scattering data
Authors S. Li, A. Accardi, I. Fernando, C. E. Keppel, W. Melnitchouk, P. Monaghan, G. Niculescu, M. I. Niculescu, J. F. Owens
JLAB number JLAB-THY-23-3907
LANL number (None)
Other number DOE/OR/23177-7103
Document Type(s) (Journal Article) 
Associated with EIC: No
Supported by Jefferson Lab LDRD Funding: No
Funding Source: Nuclear Physics (NP)

Compiled for Physical Review D
Publication Abstract: The available world deep-inelastic scattering data on simultaneously obtained proton and deuteron structure functions, $F_2^p$ and $F_2^d$, are leveraged to extract the free neutron $F_2^n$ structure function, the $F_2^n/F_2^p$ ratio, and associated uncertainties using the latest nuclear effect calculations in the deuteron. Special attention is devoted to the normalization of the proton and deuteron experimental datasets and to the treatment of correlated systematic errors, as well as the quantification of procedural and theoretical uncertainties. The extracted $F_2^n$ dataset is utilized to evaluate the $Q^2$ dependence of the Gottfried sum rule and the nonsinglet $F_2^p - F_2^n$ moments. To facilitate replication of our study, as well as for general applications, a comprehensive DIS database including all recent JLab 6 GeV measurements, a modified CTEQ-JLab global PDF fit named CJ15nlo\_mod, and grids with calculated proton, neutron and deuteron DIS structure functions at next-to-leading order are discussed and made publicly available.
Experiment Numbers: other
Document: pdf
Accepted Manuscript:
Supporting Documents:
Supporting Datasets: