Volume 76, Number 4, November 2006
|Page(s)||582 - 587|
|Section||Atomic and molecular physics|
|Published online||18 October 2006|
Scattering of hydrogen atoms at low temperature
Department of Theoretical Physics, Indian Association for the Cultivation of Science Jadavpur, Kolkata-700 032, India
Corresponding author: firstname.lastname@example.org
Accepted: 26 September 2006
A non-adiabatic model is employed to investigate the H-H scattering at low temperatures. Unlike molecular-orbital calculation technique, no separate calculations are required to obtain the potential energies of electrons in the field of hadrons. This model generates the non-adiabatic effective potential automatically. The coefficients of van der Waals and higher-order potentials are estimated in the present model and are found to be in very good agreement with the corresponding standard values. The s-wave singlet and triplet scattering lengths and thermal-average total triplet cross-section at 2 are reported and compared with the existing theoretical and experimental predictions.
PACS: 34.50.-s – Scattering of atoms and molecules / 31.15.Ar – Ab initio calculations
© EDP Sciences, 2006
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