Experimental Evidence for Magnetic Field Effects on Dielectronic Recombination via High Rydberg States
- Institut fuer Kernphysik, Universitaet Giessen, 35392 Giessen (Germany)
- Max-Planck-Institut fuer Kernphysik and Physikalisches Institut der Universitaet Heidelberg, 69117 Heidelberg (Germany)
- Manne Siegbahn Laboratory, Stockholm University, 10405 Stockholm (Sweden)
- JILA, University of Colorado, Boulder, Colorado 80309-0440 (United States)
We report the first experimental observation of magnetic field effects on dielectronic recombination (DR) via highly excited Rydberg levels. Crossed static electric and magnetic fields E{sub y} and B{sub z} were imposed on the collision region in high resolution DR measurements with Li-like Cl{sup 14+} ions at the heavy ion storage ring TSR in Heidelberg. Enhancement of DR rate coefficients {alpha} for the group of high Rydberg states attached to the 2p{sub 1/2} and 2p{sub 3/2} series limits was observed when motional electric fields E{sub y} up to 380thinspthinspV/cm were introduced. The associated enhancement rate d{alpha}/dE{sub y} which we found to be constant at least for E{sub y}{le}100 V/cm decreased by almost a factor of 2 when the longitudinal field B{sub z} was increased from 20 to 69thinspthinspmT. {copyright} {ital 1999} {ital The American Physical Society}
- DOE Contract Number:
- AI02-95ER54293
- OSTI ID:
- 365853
- Journal Information:
- Physical Review Letters, Vol. 82, Issue 19; Other Information: PBD: May 1999
- Country of Publication:
- United States
- Language:
- English
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