Evaluation of the pair distribution function of a hard-sphere Bose gas at zero temperature

An explicit evaluation of the pair distribution function of a hard-sphere Bose gas at zero temperature is made. The result correct to first order in a hard-sphere diameter and based on a chain-diagram approximation is plotted, and the corresponding numerical values are given. Approximate analytical expressions for the distribution function at various distances are also reported. © 1967 The American Physical Society.