Quantum-state–selective electron recombination studies suggest enhanced abundance of primordial HeH+

O Novotný, P Wilhelm, D Paul, A Kalosi, S Saurabh… - Science, 2019 - science.org
The epoch of first star formation in the early Universe was dominated by simple atomic and
molecular species consisting mainly of two elements: hydrogen and helium. Gaining insight …

The mutual neutralization of hydronium and hydroxide

A Bogot, M Poline, MC Ji, A Dochain, A Simonsson… - Science, 2024 - science.org
Mutual neutralization of hydronium (H3O+) and hydroxide (OH−) ions is a very fundamental
chemical reaction. Yet, there is only limited experimental evidence about the underlying …

Merged-Beams Study of the Reaction of Cold with C atoms Reveals a Pronounced Intramolecular Kinetic Isotope Effect

F Grussie, L Berger, M Grieser, Á Kálosi, D Müll… - Physical Review Letters, 2024 - APS
We present a merged-beams study of reactions between HD+ ions, stored in the Cryogenic
Storage Ring (CSR), and laser-produced ground-term C atoms. The molecular ions are …

[HTML][HTML] The cryogenic storage ring CSR

R von Hahn, A Becker, F Berg, K Blaum… - Review of Scientific …, 2016 - pubs.aip.org
An electrostatic cryogenic storage ring, CSR, for beams of anions and cations with up to 300
keV kinetic energy per unit charge has been designed, constructed, and put into operation …

Absolute rate coefficient measurements of the reactions of vibrationally cold and ions with neutral C atoms

F Grussie, L Berger, M Grieser, Á Kálosi, D Müll… - Physical Review A, 2024 - APS
Ion-neutral reactions are driving the formation of small molecules in the gas phase of
interstellar clouds, where hydrogen molecules and their ions are by far the most important …

Design and commissioning of the RIKEN cryogenic electrostatic ring (RICE)

Y Nakano, Y Enomoto, T Masunaga, S Menk… - Review of Scientific …, 2017 - pubs.aip.org
A new electrostatic ion storage ring, the RIKEN cryogenic electrostatic ring, has been
commissioned with a 15-keV ion beam under cryogenic conditions. The ring was designed …

Astrochemical studies at the cryogenic storage ring

H Kreckel, O Novotný, A Wolf - … Transactions of the …, 2019 - royalsocietypublishing.org
The new Cryogenic Storage Ring at the Max Planck Institute for Nuclear Physics
(Heidelberg, Germany) has recently become operational. One of the main research areas …

Rotationally Cold Ions in the Cryogenic Electrostatic Ion-Beam Storage Ring DESIREE

HT Schmidt, G Eklund, KC Chartkunchand… - Physical Review Letters, 2017 - APS
We apply near-threshold laser photodetachment to characterize the rotational quantum level
distribution of OH-ions stored in the cryogenic ion-beam storage ring DESIREE at Stockholm …

Dissociative recombination of rotationally cold

Á Kálosi, M Grieser, LW Isberner, H Kreckel, Å Larson… - Physical Review A, 2024 - APS
We have experimentally studied dissociative recombination (DR) of electronically and
vibrationally relaxed ArH+ in its lowest rotational levels, using an electron-ion merged …

Mutual Neutralization of with

M Poline, A Dochain, S Rosén, MC Ji, P Reinhed… - Physical Review Letters, 2024 - APS
We have studied the mutual neutralization reaction of vibronically cold NO+ with O-at a
collision energy of≈ 0.1 eV and under single-collision conditions. The reaction is completely …