Interplay of post-collision interaction and photoelectron recapture in the near threshold inner shell ionization of rare gases

The Ar 2p-1 1/2 nl, Kr 3d1/2 -1 nl and Xe 4d-1 1/2 nl resonances have been photoexcited and the angular distributions of the low energy electrons ejected in the autoionistaion to the lower spin orbit component of the respective ions have been measured. The observed lineshapes can be described by a combination of the post-collision interaction effects and the electron recapture probability in the very near threshold region.