Photoelectron angular distributions in photodetachment from P-
Artikel i vetenskaplig tidskrift, 2021

The angular distributions of electrons ejected in laser photodetachment of the P- ion have been studied in the photon energy range of 0.95-3.28 eV using a photoelectron spectrometer designed to accommodate a source consisting of collinearly overlapping photon and negative ion beams. We observe the value of the asymmetry parameter β starting at zero near the threshold, falling to almost -1 about 0.5 eV above the threshold and eventually rising to a positive value. The experimental data has been fitted to a simplified model of the Cooper-Zare formula which yields a qualitative understanding of the quantum interference between the outgoing s and d waves representing the free electron. The present results are also compared with previous results for other elements involving p-electron photodetachment.


Negative Ions

Electron Affinity


Olle Windelius

Göteborgs universitet

J. Welander

Göteborgs universitet

A. Aleman

Göteborgs universitet

D. J. Pegg

University of Tennessee

K. V. Jayaprasad

Cochin University of Science and Technology

S. Ali

University of Gujrat

Dag Hanstorp

Göteborgs universitet

Physical Review A

24699926 (ISSN) 24699934 (eISSN)

Vol. 103 3 033108


Acceleratorfysik och instrumentering

Atom- och molekylfysik och optik

Annan fysik



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