R-ratios and moments of nuclear structure functions

Abstract

We study implications of a model, which links nuclear and nucleon structure functions. Computed Callen-Gross functions ${\kappa }^A(x,Q^2)=2x{F}_1^A(x,Q^2)/F_2^A(x,Q^2)$ appear for finite $Q^2$ to be close to their asymptotic value 1. Using those $\kappa$, we compure $R$ ratios for $Q^2\ge 5Ge{V}^2$. We review approximate methods in use for the extraction of $R$ from inclusive scattering and ENC data. Further we calcuate ratios of the moments of $F_k$ and find these to describe the data, in particular their $Q^2$ dependence. The above observables, as well as inclusive cross sections, are sensitive tests for the underlying relation between nucleonic and nuclear structure functions. In view of the overall agreement, we speculate that the above relation effectively circumvents a QCD calculation.

13 p. Latex file, 1 ps fig

References in corpus (4)

• Inclusive Electron-Nucleus Scattering at Large Momentum Transfer
• Theoretical aspects of the CEBAF 89-009 experiment on inclusive scattering of 4.05 GeV electrons from nuclei
• Predictions for the 4 GeV TJNAF inclusive electron scattering experiment and for FSI effects in EMC ratios
• Off-shell Corrections and Moments of the Deep Inelastic Nuclear Structure Functions

Cited by in corpus (8)

• GRS computation of deep inelastic electron scattering on 4He
• Extraction of the n structure function $F_2^n$ from inclusive scattering data on composite nuclei
• The neutron magnetic form factor G_M^n(Q^2) from Quasi-Elastic inclusive scattering data on D and 4He
• A simple qualitative description of EMC ratios μ^A for 0.2 <~ x <~ 1.5 and some sample calculations
• Description of inclusive scattering of 4.045 GeV electrons from D
• On Distribution Functions for Partons in Nuclei
• Inclusive scattering data on light nuclei as a precision tool for the extraction of G_M^n
• On the relation between nuclear and nucleon Structure Functions and their moments