Differential Study of Projectile Coherence Effects on Double Capture Processes in p + Ar Collisions

Abstract

We have measured differential yields for double capture and double capture accompanied by ionization in 75 keV p + Ar collisions. Data were taken for two different transverse projectile coherence lengths. A small effect of the projectile coherence properties on the yields were found for double capture, but not for double capture plus ionization. The results suggest that multiple projectile–target interactions can lead to a significant weakening of projectile coherence effects.

Keywords

• ion-atom collisions
• few-body problem
• coherence effects
• charge exchange