Elastic photon scattering from helium-4 between 23 and 73 MeV

Elastic photon scattering cross sections were measured for $\sp4$He 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 $\sp4$He.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Physics

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Wells, Douglas Patrick

Contributors dc:contributor

• Eisenstein, Robert A.

• Physics, Nuclear

Statement dc:rights

• Copyright 1990 Wells, Douglas Patrick

Language dc:language

eng

Identifier

AAI9026348
(UMI)AAI9026348

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/19756