Kinematically Complete Measurement of the Proton Structure Function F₂ in the Resonance Region and Evaluation of its Moments

Authors

M. Bektasoglu, Old Dominion University
L. Ciciani, Old Dominion University
K. V. Dharmawardane, Old Dominion University
G. E. Dodge, Old Dominion UniversityFollow
C. E. Hyde-Wright, Old Dominion UniversityFollow
A. Klein, Old Dominion University
A. V. Klimenko, Old Dominion University
S. E. Kuhn, Old Dominion UniversityFollow
F. Sabatié, Old Dominion University
S. Stepanyan, Old Dominion University
L. B. Weinstein, Old Dominion UniversityFollow
J. Yun, Old Dominion University
et al.
CLAS Collaboration

Document Type

Article

Publication Date

2003

DOI

10.1103/PhysRevD.67.092001

Publication Title

Physical Review D

Volume

67

Issue

9

Pages

1-18

Abstract

We measured the inclusive electron-proton cross section in the nucleon resonance region (W <2.5 GeV) at momentum transfers Q² below 4.5 (GeV/c)² with the CLAS detector. The large acceptance of CLAS allowed the measurement of the cross section in a large, contiguous two-dimensional range of Q² and x, making it possible to perform an integration of the data at fixed Q² over the significant x interval. From these data we extracted the structure function F₂ and, by including other world data, we studied the Q² evolution of its moments, M_n(Q²), in order to estimate higher twist contributions. The small statistical and systematic uncertainties of the CLAS data allow a precise extraction of the higher twists and will require significant improvements in theoretical predictions if a meaningful comparison with these new experimental results is to be made.

Comments

© 2003 The American Physical Society

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Publisher's version available at: https://doi.org/10.1103/PhysRevD.67.092001

Original Publication Citation

Dodge, G.E., Hyde-Wright, C.E., Kuhn, S.E., Weinstein, L.B., Yun, J., et al., CLAS Collaboration (2003). Kinematically complete measurement of the proton structure function F₂ in the resonance region and evaluation of its moments. Physical Review D, 67(9), 1-18, Article 092001. https://doi.org/10.1103/PhysRevD.67.092001

ORCID

0000-0003-1582-2376 (Dodge), 0000-0001-7282-8120 (Hyde-Wright), 0000-0003-2243-6836 (Kuhn), 0000-0001-5416-2900 (Weinstein)

Repository Citation

Bektasoglu, M.; Ciciani, L.; Dharmawardane, K. V.; Dodge, G. E.; Hyde-Wright, C. E.; Klein, A.; Klimenko, A. V.; Kuhn, S. E.; Sabatié, F.; Stepanyan, S.; Weinstein, L. B.; Yun, J.; et al.; and CLAS Collaboration, "Kinematically Complete Measurement of the Proton Structure Function F₂ in the Resonance Region and Evaluation of its Moments" (2003). Physics Faculty Publications. 511.
https://digitalcommons.odu.edu/physics_fac_pubs/511