ANALYTICAL STRUCTURE FACTORS FOR COLLOIDAL FLUIDS WITH SIZE AND INTERACTION POLYDISPERSITIES

The hard sphere M Yukawa fluid is considered as a model for a colloida l fluid. On the basis of the mean spherical approximation solution of the Ornstein-Zernike equation, for the case of the closure relation co nsisting of the sum of the M Yukawa terms with the factorizable coeffi cients, compact and useful expressions of static structure factors are presented. The expressions are tractable for the hard sphere M Yukawa fluid with intrinsic size and interaction polydispersities as well as for the fluid with an arbitrary number of components.