143 citations · 773 across the 20 of their papers we have counts for
21 papers
Rovibrational cross sections for the CO , , and Fermi resonance states and in collisions with He atoms
Jelena Bošković, Taha Selim, Ad van der Avoird +2
We present quantum scattering calculations of CO-He state-to-state integral cross sections for 25 transition sets, covering pure rotational transitions within and rovibrational…
State-to-state rovibrational transition rates for CO2 in the bend mode in collisions with He atoms
Taha Selim, Ad van der Avoird, Gerrit C. Groenenboom
Modeling environments that are not in local thermal equilibrium, such as protoplanetary disks or planetary atmospheres, with molecular spectroscopic data from space telescopes requ…
Quantum state resolved molecular dipolar collisions over four decades of energy
Guoqiang Tang, Matthieu Besemer, Stach Kuijpers +4
Collisions between cold polar molecules represent a fascinating research frontier, but have proven hard to probe experimentally. We report measurements of inelastic cross sections…
Tomography of Feshbach Resonance States
Baruch Margulis, Karl P. Horn, Daniel M. Reich +8
Feshbach resonances are fundamental to interparticle interactions and become particularly important in cold collisions with atoms, ions, and molecules. Here we present the detectio…
Efficient computational methods for rovibrational transition rates in molecular collisions
Taha Selim, Ad van der Avoird, Gerrit C. Groenenboom
Astrophysical modeling of processes in environments that are not in local thermal equilibrium requires the knowledge of state-to-state rate coefficients of rovibrational transition…
Mapping partial wave dynamics in scattering resonances by rotational de-excitation collisions
Tim de Jongh, Quan Shuai, Grite L. Abma +5
One of the most important parameters in a collision is the 'miss distance' or impact parameter, which in quantum mechanics is described by quantized partial waves. Usually, the col…
Theory of Gas Phase Scattering and Reactivity for Astrochemistry
Laurent Wiesenfeld, Wing-Fai Thi, Paola Caselli +13
Because of the very peculiar conditions of chemistry in many astrophysical gases (low densities, mostly low temperatures, kinetics-dominated chemical evolution), great efforts have…
Direct probe of anisotropy in atom-molecule collisions via quantum scattering resonances
Ayelet Klein, Yuval Shagam, Wojciech Skomorowski +8
Anisotropy is a fundamental property of particle interactions. It occupies a central role in cold and ultra-cold molecular processes, where long range forces have been found to sig…
Simulating rotationally inelastic collisions using a Direct Simulation Monte Carlo method
O. Schullian, J. Loreau, N. Vaeck +4
A new approach to simulating rotational cooling using a direct simulation Monte Carlo (DSMC) method is described and applied to the rotational cooling of ammonia seeded into a heli…
Quantum Calculation of Inelastic CO Collisions with H. III. Rate Coefficients for Ro-vibrational Transitions
L. Song, N. Balakrishnan, K. M. Walker +5
We present calculated rate coefficients for ro-vibrational transitions of CO in collisions with H atoms for a gas temperature range of 10 K 3000 K, based on the recen…
Quantum Calculation of Inelastic CO Collisions with H. II. Pure Rotational Quenching of High Rotational Levels
Kyle M. Walker, L. Song, B. H. Yang +5
Carbon monoxide is a simple molecule present in many astrophysical environments, and collisional excitation rate coefficients due to the dominant collision partners are necessary t…
Imaging resonances in low-energy NO-He inelastic collisions
Sjoerd N. Vogels, Jolijn Onvlee, Simon Chefdeville +3
In molecular collisions, resonances occur at specific energies where the colliding particles temporarily form quasi-bound complexes, resulting in rapid variations in the energy dep…
High-resolution imaging of velocity-controlled molecular collisions using counterpropagating beams
Sjoerd N. Vogels, Jolijn Onvlee, Alexander von Zastrow +3
We present ultrahigh-resolution measurements of state-to-state inelastic differential cross sections for NO-Ne and NO-Ar collisions, obtained by combining the Stark deceleration an…
Dynamics of CO in Amorphous Water Ice Environments
L. J. Karssemeijer, S. Ioppolo, M. C. van Hemert +4
The long-timescale behavior of adsorbed carbon monoxide on the surface of amorphous water ice is studied under dense cloud conditions by means of off-lattice, on-the-fly, kinetic M…
Resonances in rotationally inelastic scattering of OH() with helium and neon
Koos B. Gubbels, Qianli Ma, Millard H. Alexander +5
We present detailed calculations on resonances in rotationally and spin-orbit inelastic scattering of OH () radicals with He and Ne atoms. We calculate new \…
Scattering resonances in slow NH-He collisions
Koos B. Gubbels, Sebastiaan Y. T. van de Meerakker, Gerrit C. Groenenboom +2
We theoretically study slow collisions of NH molecules with He atoms, where we focus in particular on the observation of scattering resonances. We calculate state-to-state inte…
On the role of the magnetic dipolar interaction in cold and ultracold collisions: Numerical and analytical results for NH() + NH()
Liesbeth M. C. Janssen, Ad van der Avoird, Gerrit C. Groenenboom
We present a detailed analysis of the role of the magnetic dipole-dipole interaction in cold and ultracold collisions. We focus on collisions between magnetically trapped NH molecu…
Scattering of Stark-decelerated OH radicals with rare-gas atoms
Ludwig Scharfenberg, Koos B. Gubbels, Moritz Kirste +4
We present a combined experimental and theoretical study on the rotationally inelastic scattering of OH () radicals with the collision partners He, Ne, Ar,…
Cold and ultracold NH--NH collisions in magnetic fields
Liesbeth M. C. Janssen, Piotr. S. Żuchowski, Ad van der Avoird +2
Elastic and spin-changing inelastic collision cross sections are presented for cold and ultracold magnetically trapped NH. The cross sections are obtained from coupled-channel scat…
Cold and ultracold NH--NH collisions: The field-free case
Liesbeth M. C. Janssen, Piotr. S. Żuchowski, Ad van der Avoird +2
We present elastic and inelastic spin-changing cross sections for cold and ultracold NH() + NH() collisions, obtained from full quantum scattering calculations…
Ab initio potential energy surfaces for NH-NH with analytical long range
Liesbeth M. C. Janssen, Gerrit C. Groenenboom, Ad van der Avoird +2
We present four-dimensional ab initio potential energy surfaces for the three spin states of the NH-NH complex. The potentials are partially based on the work of Dhont et al. [J. C…