Double-differential distributions produced by collisional electron loss into the continuum for the H0 -He system

MECKBACH, W.; VIDAL, R.; FOCKE, P.; NEMIROVSKY, I.B.; LEPERA, E. GONZALEZ

PHYSICAL REVIEW LETTERS

AMER PHYSICAL SOC

Año: 1984 vol. 52 p. 621 - 624

0031-9007

Detailed double-differential distributions in energy and angle of emission of electrons ejected into the continuum by collisional ionization of H0 projectiles with He are measured. Anisotropies of the resulting three-dimensional cusps are discussed in terms of contour lines taken at different levels. They show a structure that calls for an inclusion of higher terms in the expansion of the cross section, not contained in first Born calculations of Day and of Briggs and Day. © 1984 The American Physical Society.