Neutron Scattering and the Dispersion Relation in He II at Small Momentum TransferPhysical Review A (1973)
AbstractWeighted-least-squares fits to the small momentum transfer (k≤1 Å-1) results of Woods and Cowley have been carried out. We find that the neutron data presently available (i) are not of sufficient accuracy to determine whether or not quadratic terms are present in the dispersion relation and (ii) weakly favor positive dispersion in the absence of the quadratic term.
Citation InformationRobert Hallock. "Neutron Scattering and the Dispersion Relation in He II at Small Momentum Transfer" Physical Review A Vol. 8 Iss. 6 (1973)
Available at: http://works.bepress.com/robert_hallock/20/