ISSN:
1434-6079
Keywords:
25.70
;
34.50.F
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract In recent experiments at least two structures have been detected in positron spectra from subcritical (total chargeZ ≦ 174) heavy-ion collisions at bombarding energiesE Lab=5.7−5.9 MeV/n. The origin of these structures is unexplained up to now. Atomic effects have already been discussed as a possible source in a previous paper, where a schematic ansatz for the electronic transition matrix elements was employed. Meanwhile numerical calculations forK-vacancy formation also exhibited oscillations in the impact parameter dependence when using this ansatz. In this paper we report on a scaling law describing these oscillations. As a consequence certain subsidiary conditions have to be imposed on our schematic ansatz, which in turn yield a new understanding on eligible atomic sources for multiple structures in the emission spectra of positrons.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01437096
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