Higher Twist Analysis of the Proton g₁ Structure Function

Authors

M. Osipenko
W. Melnitchouk
S. Simula
P. Bosted
V. Burkert
M. E. Christy
K. Griffioen
C. Keppel
S. E. Kuhn, Old Dominion UniversityFollow

Document Type

Article

Publication Date

2005

DOI

10.1016/j.physletb.2005.01.071

Publication Title

Physics Letters B

Volume

609

Issue

3-4

Pages

259-264

Abstract

We perform a global analysis of all available spin-dependent proton structure function data, covering a large range of Q², 1 ⩽ Q² ⩽ 30 GeV², and calculate the lowest moment of the g₁ structure function as a function of Q². From the Q² dependence of the lowest moment we extract matrix elements of twist-4 operators, and determine the color electric and magnetic polarizabilities of the proton to be X_E= 0.026 ± 0.015(stat) ± ^0.021_0.024 (sys) and X_B= -0.013 ∓ 0.007(stat) ∓ ^0.010 _0.012(sys), respectively.

Comments

Copyright © 2005 Elsevier B.V. All rights reserved.

Open Access via SCOAP³

Publisher's version available at: https://doi.org/10.1016/j.physletb.2005.01.071

Original Publication Citation

Osipenko, M., Melnitchouk, W., Simula, S., Bosted, P., Burkert, V., Christy, M. E., Griffioen, K., Keppel, C., & Kuhn, S. E. (2005). Higher twist analysis of the proton g₁ structure function. Physics Letters B, 609(3-4), 259-264. https://doi.org/10.1016/j.physletb.2005.01.071

ORCID

0000-0003-2243-6836 (Kuhn)

Repository Citation

Osipenko, M.; Melnitchouk, W.; Simula, S.; Bosted, P.; Burkert, V.; Christy, M. E.; Griffioen, K.; Keppel, C.; and Kuhn, S. E., "Higher Twist Analysis of the Proton g₁ Structure Function" (2005). Physics Faculty Publications. 507.
https://digitalcommons.odu.edu/physics_fac_pubs/507