Neutron Scattering from Liquid 4He
نویسنده
چکیده
where b~ is a length describing the strength of the interaction. The scattering cross-section may be readily derived 1"2 from V(r) using Fermi's Golden rule leading to (1). Any excitation in a solid or fluid that contributes to or leads to a density fluctuation can be observed in S(Q, to). For comparison with experiment, it is convenient to calculate the dynamic susceptibility corresponding to S(Q, t),
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تاریخ انتشار 2003