INVESTIGADORES
RIVAROLA Roberto Daniel
artículos
Título:
Interference effects due to projectile target nucleus scattering in single ionization of H2 by 75-keV proton impact
Autor/es:
J.S.ALEXANDER, A.C.LAFORGE, A.HASAN, S. MACHAVARIANI, M.F.CIAPPINA, RDRIVAROLA, D.H.MADISON Y M.SCHULZ
Revista:
PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS
Editorial:
The Americal Physical Society
Referencias:
Año: 2008 vol. 78 p. 607011 - 607014
ISSN:
1050-2947
Resumen:
Doubly differential cross sections (DDCs) for single ionization of molecular hydrogen by 75-keV proton impact have been measured and calculated as a function of the projectile scattering angle and energy loss. Inteference structures are observed in the scattering angular dependence of the DDCs, which dissapear, however, at electron speeds near the projectile speed. The comparison in our calculations shows that the projectile-target nucleus interaction plays a central role. Furthermore, our data suggest that for a given scattering angle, ionization favors well-defined molecular orientations.