Coulomb distortion effects for electron or positron induced (e,e') reactions in the quasielastic region

Journal Article · Mon Oct 01 04:00:00 EDT 2001 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.64.044607· OSTI ID:40277182

Kim, K S; Wright, L E; Resler, D A

In response to recent experimental studies we investigate Coulomb distortion effects on (e,e') reactions from medium and heavy nuclei for the case of electrons and positrons. We extend our previously reported full distorted-wave Born approximation treatment of Coulomb distortions to the case of positrons for the {sup 208}Pb (e,e') reaction in the quasielastic region for a particular nuclear model. In addition, we use previously reported successful approaches to treating Coulomb corrections in an approximate way to calculate the Coulomb distortion effects for (e,e') reactions for both electrons and positrons for the case of a simple nuclear model for quasielastic knockout of nucleons. With these results in hand we develop a simple ad hoc approximation for use in analyzing experiments, and discuss methods of extracting the ''longitudinal structure function'' which enters into evaluation of the Coulomb sum rule. These techniques are generally valid for lepton induced reactions on nuclei with momentum transfers greater than approximately 300 MeV/c.

• Sponsoring Organization: (US)
• DOE Contract Number: FG02-87ER40370
• OSTI ID: 40277182
• Journal Information: Physical Review C, Journal Name: Physical Review C Journal Issue: 4 Vol. 64; ISSN 0556-2813
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BORN APPROXIMATION
COULOMB CORRECTION
ELECTRONS
EVALUATION
HEAVY NUCLEI
LEPTONS
MOMENTUM TRANSFER
NUCLEAR MODELS
NUCLEI
NUCLEONS
POSITRONS
SUM RULES