Arnaud Dochain
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View article: Elucidating the role of a molecular anion in mutual neutralisation reactions
Elucidating the role of a molecular anion in mutual neutralisation reactions Open
We have studied the MN of NO+ with NO2- under single-collision conditions at a collision energy of ≈0.1 eV. Combining cryogenically stored-and-merged ion beams with coincident-product imaging, we determine that the reaction predominantly p…
View article: Disentangling vibrationally-dependent molecular dynamics in mutual neutralisation reactions
Disentangling vibrationally-dependent molecular dynamics in mutual neutralisation reactions Open
Products and dynamics of mutual neutralisation (MN) reactions involving even simple molecular ions are largely unknown. Combining cryogenically stored-and-merged ion beams with coincident product-imaging addresses this issue.Application to…
View article: Unravelling non-adiabatic pathways in the mutual neutralization of hydronium and hydroxide
Unravelling non-adiabatic pathways in the mutual neutralization of hydronium and hydroxide Open
The mutual-neutralization of hydronium and hydroxide ions is a fundamental chemical reaction. Yet, there is very limited direct experimental evidence about its intrinsically non-adiabatic mechanism. By 3D-imaging of the coincident neutral …
View article: Mutual neutralisation of O<sup>+</sup> with O<sup>−</sup>: investigation of the role of metastable ions in a combined experimental and theoretical study
Mutual neutralisation of O<sup>+</sup> with O<sup>−</sup>: investigation of the role of metastable ions in a combined experimental and theoretical study Open
The mutual neutralisation of O + with O − has been studied in a double ion-beam storage ring with combined merged-beams, imaging and timing techniques.
View article: Non-adiabatic transitions in the near-UV photodissociation of H3+
Non-adiabatic transitions in the near-UV photodissociation of H3+ Open
Synopsis The near-UV photodissociation of has been studied in a fast beam experiment. The kinetic energy release and branching ratio among the fragmentation channels were obtained by three-dimensional imaging of the dissociation pro…
View article: Merged beam studies of mutual neutralization at subthermal collision energies
Merged beam studies of mutual neutralization at subthermal collision energies Open
We have measured the kinetic energy distributions for the mutual neutralization of a large ensemble of atomic anions and cations. Ions are accelerated to equal velocities in a merged beam setup, enabling measurements at collision energies …
View article: Non adiabatic coupling matrix element from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam
Non adiabatic coupling matrix element from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam Open
This table gives the non-adiabatic coupling matrix element between the ground and first excited state of H3+, as shown in figure 1
View article: Adiabatic potential energy surfaces from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam
Adiabatic potential energy surfaces from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam Open
This table gives the adiabatic potential energy surfaces for the ground and first excited states of H3+, as shown in figure 1
View article: ReadMe from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam
ReadMe from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam Open
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View article: Kinetic energy release spectra from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam
Kinetic energy release spectra from Photodissociation as a probe of the H<sup>+</sup><sub>3</sub> avoided crossing seam Open
This table gives the kinetic energy release spectra for the H2+ + H and H2 + H+ channels, as shown in figure 4
View article: State-resolved measurements of mutual neutralization at subthermal collision energies
State-resolved measurements of mutual neutralization at subthermal collision energies Open
We have measured the total cross sections and kinetic energy distributions of the neutral fragments for the mutual neutralization of C and O with C+, N+ and O+ by using a merged beam apparatus. A ne resolution in the kinetic energy spect…
View article: Absence of entanglement effect on the decay dynamics of H(2<i>p</i>) pairs produced by VUV photodissociation of H<sub>2</sub>
Absence of entanglement effect on the decay dynamics of H(2<i>p</i>) pairs produced by VUV photodissociation of H<sub>2</sub> Open
The eects of entanglement on the spontaneous decay of a pair of H(2p) previously observed by Tanabe et al. (Phys. Rev. A 82, 040101 (2010)) could not be reproduced despite careful determination of emission times with respect to the synchro…
View article: Production of a rovibrationally selected O<sub>2</sub><sup>+</sup>beam for dissociative recombination studies
Production of a rovibrationally selected O<sub>2</sub><sup>+</sup>beam for dissociative recombination studies Open
In order to study the reactivity of particular excited states of O2+, we have studied the resonance enhanced multiphoton ionization of O2 via the 1,3Πg states with a frequency-doubled pulsed dye laser in the range 296.5–303.5 nm. We manage…