Accession Number : AD0646244

Title :   ELECTRON SCATTERING.

Descriptive Note : Semiannual technical summary rept. 30 Sep 66,

Corporate Author : NEW YORK UNIV N Y DEPT OF PHYSICS

Personal Author(s) : Bederson,B. ; Borowitz,S. ; Spruch,L.

Report Date : 30 SEP 1966

Pagination or Media Count : 19

Abstract : Experimental and theoretical atomic physics at New York University is described. The experimental work includes (1) total low energy e-O and e-O2 cross sections; (2) Tensor Polarizabilities of metastable Hg; (3) threshold behavior of 4 doublet-P1/2,3/2 states of K by electron bombardment and state selection of K beam; (4) Cold (150K) microwave discharge atomic beam H source; (5) new e-molecule total cross-section and tensor polarizability apparatus; (6) new e-'metastable rare gases' total cross sections experiment; (7) Li beam Cs plasma interactions. The theoretical scattering work includes: (1) long range potentials and functions required in partial-wave effective range theory; (2) Variational lower and upper bounds on phase shifts; (3) variational bounds on parameters using Feynman formulation of Q.M.; (4) comparison of variational bound formalisms; (5) conditions for existence of bound states; (6) bounds on matrix elements; (7) collective oscillations of atoms. (Author)

Descriptors :   (*ELECTRONS, SCATTERING), (*MOLECULAR BEAMS, SCATTERING), (*ATOMIC ENERGY LEVELS, EXCITATION), ELECTRON BEAMS, PROBABILITY, OXYGEN, MERCURY, DIPOLE MOMENTS, POTASSIUM, CRYOGENICS, INSTRUMENTATION, PLASMAS(PHYSICS), POTENTIAL THEORY, WAVE FUNCTIONS, MATRICES(MATHEMATICS), MOLECULAR ENERGY LEVELS

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Nuclear Physics & Elementary Particle Physics
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE