Longitudinal response functions for 40Ca from quasi-elastic electron scattering

T. C. Yates*, C. F. Williamson, W. M. Schmitt, M. Osborn, M. Deady, Peter D. Zimmerman, C. C. Blatchley, Kamal K Seth, M. Sarmiento, B. Parker, Yanhe Jin, L. E. Wright, D. S. Onley

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Longitudinal response functions were extracted from quasi-elastic electron scattering data on 40Ca at angles of 45.5°, 90°, and 140° with bombarding energies ranging from 130 to 840 MeV and for constant three-momentum transfers of 300, 330, 370, 410 and 450 MeV/c. Contrary to previously reported results, the present longitudinal response functions show no more than 20% missing strength when compared to the relativistic Fermi gas model. Calculations employing wavefunctions generated from a relativistic Hartree potential and using an effective momentum approximation yield results that are in much closer agreement with the experimental data and indicate essentially no longitudinal suppression.

Original languageEnglish (US)
Pages (from-to)382-387
Number of pages6
JournalPhysics Letters B
Volume312
Issue number4
DOIs
StatePublished - Aug 19 1993

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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