Enhancement of low energy electron–ion recombination in a magnetic field: Influence of transient field effects

✍ Scribed by Maria Hörndl; Shuhei Yoshida; Karoly Tőkési; Joachim Burgdörfer

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 206 KB
• Volume: 235
• Category: Article
• ISSN: 0168-583X
• DOI: 10.1016/j.nimb.2005.03.192

✦ Synopsis

The experimentally observed enhancement of electron-ion recombination at low relative energies is still a widely open problem. During the merging of an electron and an ion beam in the electron cooler of the storage ring a transient motional electric field is present in the rest frame of the ion which, in turn, may open an additional pathway for freebound transitions of electrons. We present simulations performed for the toroidal merging geometry of the TSR in Heidelberg. Very high Rydberg states, typically n P 400, are found to be populated during the merging process. Radiative stabilization of these Rydberg states inside the solenoid can contribute to the observed enhancement.