Abstract
The enhancement of spontaneous radiative recombination of C6+ ions with free electrons in a resonant laser field has been investigated at the Heidelberg cooler ring TSR for different transverse electron temperatures realized by adiabatically expanding the magnetically guided electron beam. The recombination spectra close to the ionization threshold strongly deviate from calculations for free independent electrons, showing important contributions at energies below this threshold. Shape and relative size of these contributions change significantly as the transverse temperature is varied. These changes are not consistent with the expected behaviour of sub-threshold contributions due to electric stray fields.
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References
A. Wolf et al., in:Atomic Physics 13, eds. H. Walther, T.W. Hänsch and B. Neizert, AIP Conf. Proc, Vol. 275 (AIP New York, 1993) p. 228.
U. Schramm et al., Phys. Rev. Lett. 67 (1991) 22.
T. Schüßler et al., Nucl. Instr. Meth. B98 (1995) 146; Phys. Rev. Lett. 75 (1995) 802.
S. Asp et al., to be published.
U. Schramm et al., to be published.
H. Poth, Phys. Rep. 196 (1990) 135.
S. Pastuszka et al., Nucl. Instr. Meth. B, in press.
H. Danared et al., Nucl. Instr. Meth. A335 (1993) 397; Phys. Rev. Lett. 72 (1994) 3775.
H.A. Bethe und E.E. Salpeter,Quantum Mechanics of One- and Two-Electron Atoms (Springer, Berlin-Göttingen-Heidelberg, 1957).
A. Wolf, in:Recombination of Atomic Ions, eds. W.G. Graham, W. Fritsch, Y. Hahn and J.A. Tanis (Plenum, New York, 1992) p. 209.
M. Pajek and R. Schuch, Phys. Rev. A45 (1992) 7894.
H.F. Beyer, D. Liesen and O. Guzman, Part. Accel. 24 (1989) 163.
K. Omidvar and P.T. Guimares, Astrophys. J. Suppl. Ser. 73 (1990) 555.
F.H.M. Faisal et al., J. Phys. B 14 (1981) L596; Phys. Rev. A30 (1984) 2433.
V.D. Kondratovich and V.N. Ostrovsky, J. Phys. 23 (1990) 3785; J. Phys. 17 (1984) 1981.
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Schramm, U., Schüssler, T., Habs, D. et al. Laser-induced recombination studies with the adiabatically expanded electron beam of the Heidelberg TSR. Hyperfine Interact 99, 309–316 (1996). https://doi.org/10.1007/BF02274935
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DOI: https://doi.org/10.1007/BF02274935