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Sensitivity of the dynamics of Na + Na\(\mathsf{_2}\) collisions on the three-body interaction at ultralow energies

Article

Abstract.

We have studied the quantum dynamics of collisions between spin-stretched Na atoms and Na2 molecules. Cross-sections and rate coefficients for vibrational relaxation of Na2(v,j = 0) have been computed in the 1 nK-0.1 mK energy range using an accurate time-independent method based on hyperspherical coordinates. The complex scattering length and the extension of the Wigner region have been determined. A detailed study of the sensitivity of collisional quantities on the three-body interaction at short distance has been performed. They are very sensitive to three-body effects for the vibrational state v = 1 of Na2. Rotational distributions have also been calculated and show a more pronounced sensitivity on the three-body interaction, even for v = 2 and 3.

Keywords

Short Distance Energy Range Rate Coefficient Vibrational State Quantum Dynamic 
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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.PALMS, UMR 6627 du CNRSUniversité de Rennes 1Rennes CedexFrance

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