University of Illinois Urbana-Champaign

Elastic photon scattering from 4He between 23 and 73 MeV

Wells, Douglas Patrick

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https://hdl.handle.net/2142/25208

Description

Title
Elastic photon scattering from 4He between 23 and 73 MeV
Author(s)
Wells, Douglas Patrick
Issue Date
1990
Doctoral Committee Chair(s)
Eisenstein, Robert A.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • elastic photon scattering
  • Helium-4 (4He)
  • tagged photons
  • nuclear giant resonances
  • electromagnetic polarizabilities
Language
en
Abstract
Elastic photon scattering cross sections were measured for 4He at 45 and 135 degrees. These measurements were performed at energies between 23 and 73 MeV using the University of Illinois tagged photon facility. The principal contributions to the scattering in this energy range are the nuclear giant resonances at lower energies and the coherent scattering from bound nucleons and nucleon pairs at higher energies. The data collected in this experiment place constraints on the peak photoabsorption of the giant dipole resonance, which has been in dispute, and place limits on the electromagnetic polarizabilities of the bound nucleon in 4He.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/25208
Copyright and License Information
1990 Douglas Patrick Wells

Owning Collections

Dissertations and Theses - Physics
Dissertations in Physics
Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois