Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime

Details Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime

1995-12-21

arxiv.org/abs/cond-mat/9512146v1

Physics

Condensed Matter

20 pages, RevTex 3.0, 11 figures available upon request, to be appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.53.5661

A study of Final State Effects (FSE) on the dynamic structure function of superfluid $^4$He in the Gersch--Rodriguez formalism is presented. The main ingredients needed in the calculation are the momentum distribution and the semidiagonal two--body density matrix. The influence of these ground state quantities on the FSE is analyzed. A variational form of $\rho_2$ is used, even though simpler forms turn out to give accurate results if properly chosen. Comparison to the experimental response at high momentum transfer is performed. The predicted response is quite sensitive to slight variations on the value of the condensate fraction, the best agreement with experiment being obtained with $n_0=0.082$. Sum rules of the FSE broadening function are also derived and commented. Finally, it is shown that Gersch--Rodriguez theory produces results as accurate as those coming from other more recent FSE theories.

Affiliated with

Also associated with

No associations

Rating

Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Final state effects on superfluid $^{\bf 4}$He in the deep inelastic regime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-98385