Photodetachment of the Positronium Negative Ion with Excitation in the Positronium Atom
Heliophysics Science Division, NASA/Goddard Space Flight Center, Greenbelt, MD 20711, USA
Received: 19 October 2018 / Revised: 18 December 2018 / Accepted: 22 December 2018 / Published: 26 December 2018
has been seen from astrophysical sources and the sun. The line shape of this transition has been measured recently in Ps atoms both inside and outside a porous silica target. In the photodetachment of Ps−
, the residual Ps atom can be left in the 2P
state instead of the 1S
state giving rise to positronium Lyman radiation at 2432 A0
. Photodetachment cross sections of Ps−
have been calculated when the Ps atom is left in nP
being 2, 3, 4, 5, 6 and 7, using the asymptotic form of the bound-state wave function and a plane wave for the final state wave function, following the approach of Ohmura and Ohmura [Phys. Rev. 1960
, 154] in the photodetachment of H−
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Bhatia, A.K. Photodetachment of the Positronium Negative Ion with Excitation in the Positronium Atom. Atoms 2019, 7, 2.
Bhatia AK. Photodetachment of the Positronium Negative Ion with Excitation in the Positronium Atom. Atoms. 2019; 7(1):2.
Bhatia, Anand K. 2019. "Photodetachment of the Positronium Negative Ion with Excitation in the Positronium Atom." Atoms 7, no. 1: 2.
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