Final State Effects in the high q response of 3He-4He mixtures
F. Mazzanti
Abstract
A modified Gersch-Rodriguez formalism describing the leading Final State Effects in the high momentum transfer response of low concentration 3He-4He mixtures is presented and discussed. The leading corrections to the Impulse Approximation are expressed in terms of the interatomic potentials and the semidiagonal two-body density matrices of both the mixture and its boson-boson approximation, in which the 3He atoms are replaced by bosons of the same mass and at the same partial density. Numerical calculations of the Final State Effects functions of 3He and 4He are finally presented and discussed.
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