Abstract
It is shown that a noninteracting---spin-wave theory, in which the central component observed by neutron scattering is attributed to scattering from spin-wave---density fluctuations, gives intensities comparable to, or greater than, the intensities predicted by the soliton theory, and provides a better fit to the variation of the intensity with field, temperature, and wave vector. It is concluded that further work is needed to distinguish the soliton contribution to the central-peak intensity from the scattering by pairs of spin waves.
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