Moments of the proton F{sub 2} structure function at low Q{sup 2}

Journal Article · Tue May 01 00:00:00 EDT 2001 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.63.094008· OSTI ID:40205114

Armstrong, C S; Ent, R; Keppel, C E; Liuti, S; Niculescu, G; Niculescu, I

We investigate the Q{sup 2} dependence of inclusive electron-proton scattering F{sub 2} structure function data in both the nucleon resonance region and the deep inelastic region, at momentum transfers below 5 (GeV/c){sup 2}. From these data we construct moments of F{sub 2}, down to momentum transfers of Q{sup 2}{approx}0.1 (GeV/c){sup 2}. The second moment is only slowly varying with Q{sup 2} down to Q{sup 2}{approx}1 (GeV/c){sup 2}, which is a reflection of duality. Below Q{sup 2} of 1 (GeV/c){sup 2}, the Q{sup 2} dependence of the moments is predominantly governed by the elastic contribution, whereas the inelastic channels still seem governed by local duality.

• Sponsoring Organization: (US)
• OSTI ID: 40205114
• Journal Information: Physical Review D, Vol. 63, Issue 9; Other Information: DOI: 10.1103/PhysRevD.63.094008; Othernumber: PRVDAQ000063000009094008000001; 038109PRD; PBD: 1 May 2001; ISSN 0556-2821
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DUALITY
MOMENTUM TRANSFER
NUCLEONS
PROTONS
REFLECTION
RESONANCE
SCATTERING
STRUCTURE FUNCTIONS