Inelastic electron scattering from He3 and He4 in the threshold region at high momentum transfer

S. Rock, R. G. Arnold, B. T. Chertok, Z. M. Szalata, D. Day, J. S. McCarthy, F. Martin, B. A. Mecking, I. Sick, and G. Tamas
Phys. Rev. C 26, 1592 – Published 1 October 1982
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Abstract

The cross section for inclusive inelastic electron scattering from the helium isotopes has been measured at momentum transfers squared of 0.8Q25.0 (GeV/c)2 for He3 and 0.8Q22.4 (GeV/c)2 for He4. The data were taken at 8° and cover the range 0.6<x<1, where x=Q22MHeν, which includes the elastic peak, nuclear breakup threshold, the high momentum tail of the quasielastic scattering, and pion production. The structure function, νW2, derived from the data, is approaching a scaling limit at high Q2. It can be factored into a product of functions of Q2 and of x as predicted by some models.

NUCLEAR REACTIONS He3, He4(e, e)X; E=6.416.5 GeV; θe=8°; measured dσdΩdE; deduced νW2 at threshold.

  • Received 19 February 1982

DOI:https://doi.org/10.1103/PhysRevC.26.1592

©1982 American Physical Society

Authors & Affiliations

S. Rock, R. G. Arnold, B. T. Chertok*, and Z. M. Szalata

  • American University, Washington, D.C. 20016

D. Day and J. S. McCarthy

  • University of Virginia, Charlottesville, Virginia 22901

F. Martin

  • Stanford Linear Accelerator Center, Stanford, California 94305

B. A. Mecking

  • Universität Bonn, Bonn, West Germany

I. Sick

  • Universität Basel, Basel, Switzerland

G. Tamas

  • Center d'Etudes Nucléaires de Saclay, Gif-sur-Yvette, France

  • *Deceased 1981.

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Vol. 26, Iss. 4 — October 1982

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