Accession Number : AD0282615

Title :   EXCITATION OF INDIVIDUAL-PARTICLE STATES OF NUCLEI BY INELASTIC ELECTRON SCATTERING

Corporate Author : STANFORD UNIV CALIF

Personal Author(s) : WILLEY,RAYMOND S.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : Stanford U., Calif. EXCITATION OF INDIVIDUAL-PARTICLE STATES OF NUCLEI BY INELASTIC ELECTRON SCATTERING, by Raymond S. Willey. July 62, 63p. illus. 44 refs. (Technical note, no.66) (Contract AF 49(638)388, Proj. 9750-37500) (AFOSR TN-3066) Unclassified report DESCRIPTORS: *Particles, *Excitation, *Nuclei, *Electrons, *Inelastic scattering, Nuclear structure, Electromagnetic fields, Quantum me chanics, Nuclear spins, Quadrupole moments, Vector analysis, Partial differential equations, Integration, Operators (Mathematics), Matrix algebra, Numerical analysis, Lithium, Oxygen. Formulas are given for the computation of cross sections for excitation of shell model states in light nuclei by inelastically scattered electrons. The contributions from the transverse electricAND MAGNETIC INTERACTIONS ARE CALCULATED IN DETAIL. The determination of radiative lifetimes by extrapolation of electron scattering data is discussed and found to be model-dependent. Particular calculations are carried out for Li7 and O18. The Li7 calculation provides an example in which the contributions from the transverse interactions are of the same order of magnitude as the contribution from the Coulomb interaction, even at small momentum transfer. In the case of O18, electron scattering experiments may distinguish collective excited states from individualparticle excited states. (Author)

Descriptors :   *ELECTRONS, *EXCITATION, *INELASTIC SCATTERING, *NUCLEI, *PARTICLES, ELECTROMAGNETIC FIELDS, NUMERICAL INTEGRATION, LITHIUM, MATRICES(MATHEMATICS), NUCLEAR SPINS, NUCLEAR STRUCTURE, NUMERICAL ANALYSIS, OPERATORS (MATHEMATICS), OXYGEN, PARTIAL DIFFERENTIAL EQUATIONS, QUADRUPOLE MOMENT, QUANTUM THEORY, VECTOR ANALYSIS

Distribution Statement : APPROVED FOR PUBLIC RELEASE