143 citations · 773 across the 20 of their papers we have counts for
9 papers · 1 filter
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…
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…
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…
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…
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…