Scattering length for Lennard-Jones potentials
Departamento de Física Teórica, Universidad de Zaragoza, 5009 Zaragoza, Spain
Received: 20 May 2011
Received in final form: 24 October 2011
Published online: 11 January 2012
We present an exact procedure that allows one to calculate the scattering length for any potential expressed as an algebraic sum of inverse powers of the inter-atomic distance. We apply it to (12,s) Lennard-Jones potentials, with different values of s. The procedure is suitable for a very precise determination of the intensities of the potential corresponding to zeros or poles of the scattering length.
Key words: Atomic and Molecular Collisions
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag 2012