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Updated: May 31, 2026

Angle-resolved Photoemission Spectroscopy At Ultra-low Temperatures
Published on: October 9, 2012
Cold chemistry with ionic partners: quantum features of HeH+(1Σ) with H(1S) at ultralow energies
S Bovino1, M Tacconi, F A Gianturco
1Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy.
Abstract:
Quantum reactive calculations are presented for an ion-atom reaction involving the HeH(+)cation and its destruction via a barrierless interaction with H atoms. The range of collision energies considered is that of a cold trap regime (around and below millikelvin) where the ionic partner could be spatially confined. Specific resonant features caused by the interplay of the strong ionic interaction with the very slow partners' dynamics are found and analyzed. Indications are also given on the consequences of the abstraction mechanism that acts for this reaction at low energies.
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