Ki. Golden et Nh. March, LONG-WAVELENGTH ANALYSIS OF THE DIRECT CORRELATION-FUNCTION FOR COULOMB LIQUIDS, Physics and chemistry of liquids, 26(1), 1993, pp. 59-66
The long-wavelength structure of the cooperative part c(c)(k) of the d
irect correlation function c(k) = c(p)(k) + c(c)(k) is inferred by com
paring its known potential part c(p)(k) (Kumar et al., Phys. Chem. Liq
uids, 11, 271 (1982)) with a similarly structured part which quite nat
urally emerges from the Ornstein-Zernike relation plus the first Born-
Green-Yvon equation for the one-component plasma.