Adiabatically corrected scattering lengths and effective ranges for collisions of helium atoms

The accurate relativistically retarded potential of Janzen and Aziz [J. Chem. Phys. 107 (1997) 914] and the adiabatic correction of Komasa et al. [Chem. Phys. Lett. 304 (1999) 293] are used in a calculation of scattering lengths and effective ranges for 3He–3He, 3He–4He and 4He–4He collisions; the binding energy and the number of Efimov states of the 4He–4He dimer are also presented.