University of New Hampshire
A survey of beam asymmetries in semi-exclusive electron scattering on helium-4 and carbon-12
Abstract
dc:description.abstract<p>A study of the polarized electron beam asymmetry in semi-exclusive ( e, e'p) reactions on 4He and 12C over a large kinematic range has been performed. The beam asymmetry A'LT is related to the imaginary part of the longitudinal-transverse interference and therefore it vanishes in reactions proceeding through a channel with a single dominant mechanism. In quasifree nucleon knockout, the helicity asymmetry provides an unambiguous signature for the interference between direct knockout and rescattering amplitudes. The data were taken in April--May 1999 using polarized beams of energies between 2.2 and 4.4 GeV, with the CEBAF Large Acceptance Spectrometer (CLAS) detector located in Hall B at the Jefferson Laboratory, VA. The measured asymmetries compare well with the theoretical predictions.</p>
Degree
thesis:*- Name thesis:degree_name
- Doctor of Philosophy
- Level thesis:degree_level
- Dissertation
- Year
- 2002
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Protopopescu, Dan
- Contributors dc:contributor
-
- F William Hersman
Subjects
dc:subject × 2Identifiers
dc:identifier.*- Repository record dc:identifier
- https://scholars.unh.edu/dissertation/110
- OAI identifier oai:identifier
- oai:scholars.unh.edu:dissertation-1109