https://doi.org/10.1140/epjd/e2004-00100-9
Chemical reactivity of ultracold polar molecules: investigation of H+HCl and H+DCl collisions
Department of Chemistry, University of Nevada Las Vegas,
4505 Maryland Parkway, Las Vegas NV 89154, USA
Corresponding authors: a weckp@unlv.nevada.edu - b naduvala@unlv.nevada.edu
Received:
5
June
2004
Published online:
10
August
2004
Quantum scattering calculations are reported for the
and 
collisions for vibrational levels 
of the diatoms.
Calculations were performed for incident kinetic energies in the range
, for total angular momentum J=0
and s-wave scattering in the entrance channel of the
collisions.
Cross-sections and rate coefficients are characterized by resonance
structures due to quasibound states associated with the formation
of the H
HCl and HDCl van der
Waals complexes in the incident channel. For the
collision for v=1,2, reactive scattering leading to 
formation is
found to dominate over non-reactive vibrational quenching in the ultracold regime.
Vibrational excitation of HCl from v=0 to v=2 increases the zero-temperature
limiting rate coefficient by about 8 orders of magnitude.
PACS: 34.50.-s – Scattering of atoms and molecules / 34.50.Ez – Rotational and vibrational energy transfer / 34.50.Pi – State-to-state scattering analyses
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2004
