Ionization in collisions between metastable hydrogen atoms

Alex Bohr, Andrew Blickle, Stephen Paolini, Luke Ohlinger, Robert C. Forrey

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Associative and Penning ionization cross sections are calculated for collisions between metastable hydrogen 2s atoms at thermal energies. Cross sections for deuterium 2s collisions are also reported. The associative ionization cross sections behave as E -1 for collision energy E, in agreement with an existing experiment. The Penning ionization cross sections dominate for all energies and are found to follow the E -2 /3 behavior that was predicted in previous work for the total ionization cross section. The magnitudes of our theoretical associative ionization cross sections for H(2s)+H(2s) collisions are between two and four times larger than the experimental data.

Original languageEnglish (US)
Article number042710
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume85
Issue number4
DOIs
StatePublished - Apr 11 2012

Fingerprint

metastable atoms
ionization cross sections
hydrogen atoms
ionization
collisions
thermal energy
deuterium
energy
cross sections

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Bohr, Alex ; Blickle, Andrew ; Paolini, Stephen ; Ohlinger, Luke ; Forrey, Robert C. / Ionization in collisions between metastable hydrogen atoms. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2012 ; Vol. 85, No. 4.
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Ionization in collisions between metastable hydrogen atoms. / Bohr, Alex; Blickle, Andrew; Paolini, Stephen; Ohlinger, Luke; Forrey, Robert C.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 85, No. 4, 042710, 11.04.2012.

Research output: Contribution to journalArticle

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