Influence of Young-type interference on the forward-backward asymmetry in electron emission from H2 in collisions with 80-MeV bare C ions

MISRA, D.; KELKAR, A.; KADHANE, U.; KUMAR, A.; TRIBEDI, L. C.; FAINSTEIN, P. D.

PHYSICAL REVIEW A - ATOMIC, MOLECULAR AND OPTICAL PHYSICS

AMER PHYSICAL SOC

Año: 2006 vol. 74 p. 60701 - 60701

1050-2947

We use the forward-backward angular asymmetry in the electron emission cross sections in fast ion impact ionization of H2 as a probe of the inversion symmetric coherence in homonuclear diatomic molecules. The electron energy dependence of the asymmetry parameter for H2 exhibits oscillatory structure due to Young-type interference in contrast to atomic targets such as He. The asymmetry parameter technique provides a selfnormalized method to reveal the interference oscillation independent of theoretical models and complementary measurements on atomic H target.