Phys. Rev. D 49, 4348–4372 (1994)

Measurement of the A dependence of deep-inelastic electron scattering

Abstract

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J. Gomez^*, R. G. Arnold, P. E. Bosted, C. C. Chang^†, A. T. Katramatou, G. G. Petratos^‡, A. A. Rahbar, S. E. Rock, A. F. Sill^§, and Z. M. Szalata
Department of Physics, The American University, Washington, D.C. 20016

A. Bodek and N. Giokaris^**
University of Rochester, Rochester, New York 14627

D. J. Sherden
Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309

B. A. Mecking^*
Universität Bonn, D-5300 Bonn, Germany

R. M. Lombard-Nelsen
CE-Saclay, DAPNIA/SPhN, 91191 Gif-sur-Yvette, France

Received 30 September 1993; published in the issue dated 1 May 1994

Cross sections for deep-inelastic electron scattering from liquid deuterium, gaseous ⁴He, and solid Be, C, Al, Ca, Fe, Ag, and Au targets were measured at the Stanford Linear Accelerator Center using electrons with energies ranging from 8 to 24.5 GeV. These data cover a range in the Bjorken variable x from 0.089 to 0.8, and in momentum transfer Q² from 2 to 15 (GeV/c)². The ratios of cross sections per nucleon (σ^A/σ^d)_is for isoscalar nuclei have been extracted from the data. These ratios are greater than unity in the range 0.1<x<0.3, while for 0.3<x<0.8 they are less than unity and decrease logarithmically with atomic weight A, or linearly with average nuclear density. No Q² dependence in the ratios was observed over the kinematic range of the data. These results are compared to various theoretical predictions.

URL:

http://link.aps.org/doi/10.1103/PhysRevD.49.4348

DOI:

10.1103/PhysRevD.49.4348

PACS:

13.60.Hb

^*Present address: CEBAF, Newport News, VA 23606.

^†Permanent address: Department of Physics, University of Maryland, College Park, MD 20742.

^‡Present address: SLAC, Stanford University, Stanford, CA 94309.

^§Present address: Department of Physics, Texas Tech, Lubbock, TX 79409.

^**Present address: Fermilab, Batavia, IL 60510.

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Phys. Rev. D 49, 4348–4372 (1994)

Measurement of the A dependence of deep-inelastic electron scattering