Abstract
Doubly differential cross sections d2σ / dν ‖ dν⊥ have been obtained by mapping the 3-dimensional velocity space of ultralow- and low-energy electrons \ (1.5 meV < = Ee < = 100 eV \) emitted in singly ionizing 3.6 MeV / u Au53+ on helium collisions. A sharp \ ( ΔEFWHMe⊥< = 22 meV \) asymmetric peak centered at = 0 is observed to emerge at ultralow energies from the strongly forward shifted low-energy electron velocity distribution. The shape of this "target cusp," which is very sensitive on the details of the two-center potential, is in excellent accord with theoretical predictions. © 1998 The American Physical Society.
Recommended Citation
W. Schmitt et al., "Ultralow-Energy Electrons from Fast Heavy-Ion Helium Collisions: The “Target Cusp“," Physical Review Letters, vol. 81, no. 20, pp. 4337 - 4340, American Physical Society, Nov 1998.
The definitive version is available at https://doi.org/10.1103/PhysRevLett.81.4337
Department(s)
Physics
International Standard Serial Number (ISSN)
1079-7114; 0031-9007
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 American Physical Society, All rights reserved.
Publication Date
16 Nov 1998
