Diatomic potential energy function for helium

The diatomic potential energy function for helium has been determined via the inversion of reduced viscosity collision integrals at corresponding states and zero pressure. The resulting potential has been fitted to obtain an analytical form. A comparison of newly determined potential with the previously determined potentials is also included. The transport properties of helium such as viscosity, self-diffusion, and thermal conductivity coefficients at different temperatures and pressures have been calculated and compared with experimental data and they are found to be in good agreement with each other. The second virial coefficient of helium has been also calculated using the potential at different temperatures.