Forward-angle electron spectroscopy in heavy-ion atom collisions studied at the ESR

29th International Conference on Photonic, Electronic, and Atomic Collisions

Hillenbrand, P.-M.^1 ; Hagmann, S.^1 ; Litvinov, Yu A^1 ; Stöhlker, Th.^1,2,3

GSI Helmholtzzentrum für Scherionenforschung, Darmstadt

64291, Germany^1

Helmholtz-Institut Jena, Jena

07743, Germany^2

Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität Jena, Jena

07743, Germany^3

关键词: Charge transfer mechanisms;    Collision systems;    Electron energy distributions;    Fast electrons;    Observation angle;    Projectile beam;    Projectile energy;    Projectile velocity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/1/012011/pdf
DOI  :  10.1088/1742-6596/635/1/012011

来源: IOP

【 摘 要 】

The collision system U88++ N2at a low-relativistic projectile energy of 90 MeV/u has been analyzed experimentally and theoretically with respect to fast electrons emitted with a velocity veclose to the projectile velocity, vp≈ ve, at an observation angle of θe≈ 0°, i.e., in the direction of the projectile beam. Three distinct processes are identified, where each of the underlying charge-transfer mechanisms leads to a characteristic feature in the asymmetry of the observed electron energy distribution. The experimental results for each of the three processes are compared to the corresponding theoretical models.