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Phys. Rev. D 5, 528–544 (1972)

Inelastic Electron-Proton Scattering at Large Momentum Transfers and the Inelastic Structure Functions of the Proton

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G. Miller*,**, E. D. Bloom, G. Buschhorn†,**, D. H. Coward, H. DeStaebler**, J. Drees‡,**, C. L. Jordan**, L. W. Mo**,§, and R. E. Taylor**
Stanford Linear Accelerator Center, Stanford, California 94305

J. I. Friedman‡‡, G. C. Hartmann‡‡,††, H. W. Kendall‡‡, and R. Verdier‡‡
Physics Department and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139

Received 2 August 1971; revised 8 November 1971; published in the issue dated 1 February 1972

Differential cross sections for electrons scattered inelastically from hydrogen have been measured at 18°, 26°, and 34°. The range of incident energy was 4.5 to 18 GeV, and the range of four-momentum transfer squared was 1.5 to 21 (GeV/c)2. With the use of these data in conjunction with previously measured data at 6° and 10°, the contributions from the longitudinal and transverse components of the exchanged photon have been separately determined. The values of the ratio of the photoabsorption cross sections σS/σT are found to lie in the range 0 to 0.5. The question of scaling of 2MpW1 and νW2 as a function of ω is discussed, and scaling is verified for a large kinematic range. Also, a new scaling variable which reduces to ω in the Bjorken limit is introduced which extends the scaling region. The behavior of σT and σS is also discussed as a function of ν and q2. Various weighted sum rules of νW2 are evaluated.

© 1972 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.5.528
DOI:
10.1103/PhysRevD.5.528
PACS:

*Present address: Physics Department, University of Washington, Seattle, Wash. 98105.

†Present address: DESY, Hamburg, Germany.

‡Present address: Bonn University, Bonn, Germany.

§Present address: Department of Physics and Enrico Fermi Institute, University of Chicago, Chicago, Ill.

**Work supported by the U. S. Atomic Energy Commission.

††Present address: Xerox Corporation, Rochester, N. Y.

‡‡Work supported in part by the U. S. Atomic Energy Commission under Contract No. AT(30-1) 2098.

 
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