Associative Detachment of H$^{-$ + H $\rightarrow$ H$_{2}$ + e$^{-}$

Physics – Atomic Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


Accepted for publication Phys. Rev. A

Scientific paper

Using a merged beams apparatus we have measured the associative detachment (AD) reaction of ${\rm H}^- + {\rm H} \to {\rm H}_2 + e^-$ for relative collision energies up to \textit{E}$_{\rm{r}} \leq 4.83$ eV. These data extend above the 1 eV limit of our earlier results. We have also updated our previous theoretical work to account for AD via the repulsive $^2\Sigma^+_{\rm g}$ H$_2^-$ potential energy surface and for the effects at $E_{\rm r} \ge 0.76$ eV on the experimental results due to the formation of H$_2$ resonances lying above the ${\rm H} + {\rm H}$ separated atoms limit. Merging both experimental data sets, our results are in good agreement with our new theoretical calculations and confirm the prediction that this reaction essentially turns off for $E_{\rm r} \gtrsim 2$ eV. Similar behavior has been predicted for the formation of protonium from collisions of antiprotons and hydrogen atoms.

No associations


Say what you really think

Search for scientists and scientific papers. Rate them and share your experience with other people.


Associative Detachment of H$^{-$ + H $\rightarrow$ H$_{2}$ + e$^{-}$ does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Associative Detachment of H$^{-$ + H $\rightarrow$ H$_{2}$ + e$^{-}$, we encourage you to share that experience with our community. Your opinion is very important and Associative Detachment of H$^{-$ + H $\rightarrow$ H$_{2}$ + e$^{-}$ will most certainly appreciate the feedback.

Rate now


Profile ID: LFWR-SCP-O-268204

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.