INVESTIGADORES
RODRIGUEZ CHARIARSE Vladimir Daniel
artículos
Título:
Theory of ionization processes in positron-atom collisions
Autor/es:
R. DELLA PICCA; J. FIOL; R. O. BARRACHINA; V. D. RODRÍGUEZ
Revista:
NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH B - BEAM INTERACTIONS WITH MATERIALS AND ATOMS
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam, Holanda; Año: 2006 vol. 247 p. 52 - 57
ISSN:
0168-583X
Resumen:
We review past and present theoretical developments in the description of ionization processes in positronatom collisions. Starting from an analysis that incorporates all the interactions in the final state on an equal footing and keeps an exact account of the few-body kinematics, we perform a critical comparison of different approximations, and how they affect the evaluation of the ionization cross section. Finally, we describe the appearance of fingerprints of capture to the continuum, saddle-point and other kinematical mechanisms.
