Target-mass corrections and the Bloom-Gilman duality of the nucleon structure function

Abstract

The occurrence of the Bloom-Gilman local duality in the low-order moments of the nucleon structure function is investigated for values of the squared four-momentum transfer Q**2 between ~ 0.5 and 10 (GeV/c)**2. At variance with previous analyses truncated Cornwall-Norton moments, limited to the nucleon-resonance production regions, are considered. The role played by target-mass corrections is illustrated, showing that target-mass effects are necessary (but not sufficient) for producing the observed Bloom-Gilman duality of the nucleon structure function. The possibility of a local duality between the unphysical region at large values of the Nachtmann variable and the nucleon elastic peak contribution is analyzed. It is found that the proton magnetic form factor extracted assuming local duality is significantly below the experimental data at low and intermediate values of Q**2.

arXiv commentfinal version with minor modifications, to appear in Phys. Lett. B

References in corpus (4)

• The ratio of proton's electric to magnetic form factors measured by polarization transfer
• Parton-Hadron Duality: Resonances and Higher Twists
• Bloom-Gilman duality of inelastic structure functions in nucleon and nuclei
• Power corrections in the longitudinal and transverse structure functions of proton and deuteron

Cited by in corpus (12)

• Leading and higher twists in the proton polarized structure function at large Bjorken x
• Possible evidence of extended objects inside the proton
• Quark-hadron duality in a relativistic, confining model
• Resonant contributions to inclusive nucleon structure functions from exclusive meson electroproduction data
• Comment on "Nucleon elastic form factors and local duality"
• Modeling quark-hadron duality for relativistic, confined fermions
• Scaling of Dirac Fermions and the WKB approximation
• Resonant contributions to polarized proton structure functions
• Longitudinal structure function of the proton at low momentum transfer and extended constituents
• Target mass corrections and twist-3 in the nucleon spin structure functions
• Modeling quark-hadron duality in polarization observables
• Target mass corrections to matrix elements in nucleon spin structure functions