Measurements of νW2 and R=σL/σT from inelastic electron-aluminum scattering near x=1

P E. Bosted, American University - Washington, D.C.
A Lung, American University - Washington, D.C.
L Andivahis, American University - Washington, D.C.
L M. Stuart, University of California - Davis
J Alster, University of Tel-Aviv
R G. Arnold, American University - Washington, D.C.
C C. Chang, University of Maryland - College Park
F S. Dietrich, Lawrence Livermore National Laboratory
W Dodge, National Institute of Standards and Technology
R Gearhart, Stanford Linear Accelerator Center
J Gomez, Continuous Electron Beam Accelerator Facility
K A. Griffioen, University of Pennsylvania
R S. Hicks, University of Massachusetts - Amherst
C E. Hyde-Wright, University of Washington - Seattle Campus
C Keppel, American University - Washington, D.C
S E. Kuhn, Stanford University
J Lichtenstadt, University of Tel-Aviv
R A. Miskimen, University of Massachusetts - Amherst
Gerald Alvin Peterson, University of Massachusetts - Amherst

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DOI:10.1103/PhysRevC.46.2505 Creative Commons Attribution License 3.0 (cc-BY)

Abstract

Cross sections for inclusive electron scattering from aluminum have been measured at both forward and backward angles in the kinematic region near x =1 and 1.75 & Q & 7 (GeV/c) . The forward-angle data are in good agreement with a recent calculation. Both the data and the calculation show scaling behavior for F2(g, Q~)=vs(g, Q2) at high Q for fixed values of the Nachtmann variable g. The ratio R =oL /trr has been extracted for 1.75 &Q &5 (GeV/c) and is found to decrease with Q2 to a value consistent with zero at the highest Q~.