Abstract
The scattering function S (Q,ω) for droplets of superfluid helium near absolute zero is calculated. Assuming that the surface tension τ=τ0+τ̃ (t) is fluctuating with correlation strength α, a wave diffusion decay mechanism for a nondissipative system is found. For each lth multipole of droplet shape oscillation, S (Q,ω) contains two Lorentzian peaks at frequency shifts ± (Clτ0)1/2, with a width αCl/2τ0, where Cl is the Rayleigh form factor. Applying Bose statistics, it is found that the magnitude of τ̃ is not greatly different from that of τ0. Estimates of the scattering intensity show that with present day techniques measurements are possible.
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